So I ran into a villain who really liked 3! His blinds the other day. Over 40-50 hands his 3! From blinds was 30%. So basically that means he 3! 3 of his 10 hands from the blinds.

Given he was in the blinds when I was btn and co, this sucks.

With that info, what hands are you 4! For value, and can we assume he is more likely to 5! Jam light compared to the rest of the population even though we haven't seen it?

Also I assume when you 4! For value you are calling a shove. So if you are 4! AQ for value with plans to fold to a shove, why?

Or do we just mark this as sample size issue and play normally?

His overall stats were 30/23 and no 3! From other positions.

All 100bb deep.

Why not tighten up slightly, 4 bet normally, but call liberally. Then you call down with anything slightly favorable. You need to see how he plays otf and ott to have a good strategy. Maybe he gives up otf or ott. If that happens, you wait for his check and then bet him off his garbage. Maybe he's maniacal through the river. In that case you call down with any pair, possibly A-hi, or better.

This really depends on whether or not anyone has been 4!'ing him. If it's something he's been doing this as frequently as you say, and he is, he's doing it wrong.

It depends on what your 4! range is. AQs would pretty much be the bottom of my range depending on the villain, so if you aren't folding what is effectively the bottom of your range, what are you folding? A common trap that players fall into has to do with this. Just because you 4! doesn't mean you have to call it off. Specific to this example, AQs would do pretty well against a loose 3! range... It would not do so well against a normal 5! jam range:
http://www.power-equilab.com
Equity Win Tie
V 64.43% 60.27% 4.16% { TT+, AQs+, AKo }
H 35.57% 31.40% 4.16% { AQs }

Stack size will have a major impact on 4!+ etc...

This little tidbit makes me think he's doing it light, especially against what he would perceive your range in LP to be. Unless for whatever reason he has god-mode turned on for the blinds only.

His actions post and the holdings he shows up with will go further in telling you what a 4! value range is/should be.

So if we 4! To 35bb we are needing to call off 65bb to win a 200bb pot or 32.5%ev. Seems slightly +ev to call AQs with those ranges.

Assuming raise 4bb, 3! to 12bb, 4! To 35bb.

Also by stating we are going to 4! For value and fold to a shove are you indicating that your 4! Range is linear and not polarized?

If we start polarizing our 4! Range I assume we shouldn't be folding ANY of the value hands in that range. So if our range was AQs+, JJ+, and AKo, A3-A5s and KQo or something like that we should only be folding A3-A5 and KQ I would think

If the 4! range were linear, you wouldn't have any bluffs, and thus could call with anything you would 4! with.

You may be right. It depends heavily on the villain's range in these spots. Against a villain that's jamming light, then AQs is obviously a call. If he's only 3!'ing light but not jamming light, AQs is value as a 4! but loses value when villain jams.

I didn't understand your topic clear base on 3! or 4!, is it 3x or 4x?
Base on one of the youtube video made by "splitsuit", facing such villian on your left hands, which gave your trouble for stealing ,why not change a table for easy grinding.
So I may suggest to change a table.
But vs one crazy villian with 3bet of 30%, if you are ok for some pf all in ,AXs will be good for fighting with him, but all left is with lucky.

My suggestion is to change one table, this is not our style ,for the time being.