First one depends on what if any your agreements are - if you don't have an agreement I pass - I figure at these colours partner having made a takeout double at the 3 level opposite an opening hand is never going to let them play 5C undoubled so pass by me indicates that I don't have a reason to double like say holding club values or some minimum balanced type hand with no interest in bidding on
Second hand I remain confused about the auction - I am going to guess that you started in 3rd seat and partner passed as dealer and then your right hand opponent opened 1S and that got raised to 2S and passed back to you - assuming that is right I lead the king of hearts
Playing for MP's letting them play at the 2 level is generally not a great plan and you can take bigger risks than playing for imps to avoid that happening - double might be right - you might make 3 of a minor or go 1 off undoubled when you were otherwise conceding -110 for 2S making but with a crappy balanced 10 count with imperfect shape for a double more likely you go more than 1 off or they smash you at the 3 level in search of the magical mp score of 200 for 1 off
If I have the auction right then doubling at your first go is a better choice than doubling in the passout - that would be a dodgy action but partner will compete to the 3 level with the right hand and you are more comfortable selling to 2S when he doesn't have that hand (plus they will be less inclined to smash the final contract because you have had a stronger sounding auction so the possibility of going -100 against -110 is more likely to happen) - certainly an immediate double is a better way to take the bigger risk that playing for mp's affords you
Last edited by stripsqueez; 02-08-2017 at 10:56 PM.