[McBandit]

Hand #1:

I insta-call. I am almost never beat when someone overbets a pot like this against me. I have to have a player note that they are capable of playing a set this way before i fold. I would call and expect to see a weak king, str8 draw or under pocket pair (or nothing). Is is important to tell us how the guy got that large stack, did he trap with big hands or is he a maniac? If either of those are true, the call is 100% IMHO.

Hand #2

Ya, I would likely checkraise the flop all-in if he threw out a pot-sized bet. The only hands that beat you are the least likely ones for him to have. You want him to have AA/AK here. The other option I might do is smooth call the flop and push the turn if a safe card hits (ie. no A or J).

Good luck,
McBandit/Daddys_visa