Heads up at show down
action goes bet 50 call. Who Shows 1st ?

Also do you consider a guy not showing for 3 maybe 4 seconds slow rolling ?

Why does it matter? Just show your cards.

Why do you care?

I normally do just show. Now and then I may or may not want to show a bluff.
One time I waited about 3 second to show and some JERK said I slow rolled him. I did not think 3 seconds was excessive.

The last aggressor is obliged to show first.

When someone calls a bet, they are entitled to see the opponent's cards, unless he mucks them and gives up the pot (because he has air and believes you've caught his bluff). In the (very) old days, people used to say "I'll see your bet". Calling is the same thing. You call/pay because you want to see.

If it was on you to show, and you paused like you didn't want to show, and then rolled over a monster, yes, that could be considered a slow roll. If you were just pausing because you were unsure that it was on you to show, then don't worry about it.

In practice, I typically will just fast roll if I think I have the winner.

Oh yeah. If you just bet the river and it's heads up and the opponent says "CALL", you have no excuse for not flipping your cards over immediately. If he's paid to see your cards, don't slowroll him.

well that is WHY I said he was a jerk. I called his bet he did not show until i waited 4 seconds to show. He FINALLY show and then made the comment.
.. i knew i had the nuts but that was besides the point. Thanks to everyone for your answers.

No, no it's not.

Did you read this thread ? It was in him to show 1st as the last agressor

A slow roll is pretty much any action that gives the impression you think you are behind when you know you are ahead. Yes, it is possible to make the last aggressor show in turn without slow rolling 'Sir, I called your bet', but sitting there and staring at him while holding the nuts can be seen as a slow roll.

If I am calling a guys shove with the nuts, I am not going to put salt in the wound by making him show first. I will just fast roll, take his chops, tell him it was bad luck, and hope he reloads.

If you have the nuts, say so and turn over your hand and get over with it.

You need a solid reason to insist your opponent shows first if you already know you have the winner. That's considered bad etiquette.

I usually show first when I don't have to, if the other player seems reluctant to do so or states their hand in a way that implies I'm ahead. Reason is, most of the time they are embarrassed to show the fishy hand they were playing. If I flip my cards and they want to muck without showing and being embarrassed, they can carry on playing fishy hands.

The other reason is that I want to fly under the radar. I want to be a guy that people don't notice or if they do notice, they cannot ever remember I time I angled anyone or threw a temper tantrum over losing a hand...I'm polite to everyone, etc. etc. This is the kind of thing that helps insulate you against problems with the floor and dealers and other players flipping out at you over trivialities.

All that said, if someone has been unnecessarily rude to me that session or is an angle-shooter or whatever, I just say 'show or muck sir' at showdown. Not being a dick about it but I see no need to do them any favours.

EDIT

If you have the stone cold nuts, be quicker to show. People are more likely to accuse you of slow-rolling if you won't show your flopped quads or whatever. It's comparatively rare to have the stone nuts at showdown so showing you are a good sport is probably better for your bottom line than insisting on the correct order being carried out. Someone would have to have really pissed me off to have me not fastrolling there, and I still wouldn't do it unless everyone at the table could see why I did it. Like if I thought they were a dick because of something they did a couple of months ago...it's not a good time to get some of my own back.

Remember most people hate losing a big pot and some of those people are looking for an excuse to be angry. They will invent imaginary etiquette breaches in order to berate you. If you play live poker, you will meet plenty of these tools. It makes life easier if you don't hand them an actual reason to go off, like behaving like a slow-roller for example.

THIS IS what we were talking about in this thread.
Miles tells Cynn You slow rolled me after being Koed in an awesome match.
Did he Cynn really slow roll ?
Miles could have had AK or kQ or 88 even though he did NOT play the hand like he did.
My heart goes out to Miles.

There is nothing remotely similar to what Cynn did and what you claim to do. You were at show down, not facing action. you had the nuts.

Cynn was facing action, and had the 6th nuts. Given the circumstance, I don't even think what Cynn did was a nit roll. Miles was upset in the moment, but Cynn's tanking was even close to a slow roll.

Point taken and agree

Please just show down the cards when the betting is over and win or lose the hand. Most of the other players at the table really care very little or not at all about who shows first, who won or who had what. Especially at low stakes casino tables. Most folks just want to get on to the next hand.

If you had the nuts why didn't you raise?

because i was outta position and if i made it bigger i probably dont get paid at all vs a nitty player.

A couple of posts ago the hand looked like this:
You have to pick one. Either you were OOP and he called your bet, or you called his bet.

Now, if you like to you can make up a scenario where you bet OOP, he went all-in and you called with the nuts.

It depends. The last aggressor is often the first to show. However, if the last aggressive action came before the last street of action, then earliest position shows first, regardless of who was the last aggressor, in some rooms. The latter is also the procedure in any tournament using TDA rules.