Obviously, there comes a time in a large MTT where you are just going to need to push your chips in and try and double up. My question is, is it ever going to be worth it to push non high pair hands preflop? I just pushed AK in the 1 mil guarantee on pokerstars and got pwned by the CL at the table who was holding AQ.. he spiked a Q on the turn.

http://www.pokerhand.org/?369871

is being a 70% favorite enough to push all in preflop here? Should I wait until I see the flop? so I can be more sure that I will be a lock to win if I hit? Many problems arise from this, because say I call the 3xs BB raise and the flop comes rags and they bet out. I will be forced to fold, and If i do this often enough i will run out of chips. I need to accumulate chips sometime, and this seemed like a good spot. There was a chance that they both would fold too, as it would be a perfect squeeze play. I don't know.

It just seems whenever I push this hand it never works out. Another example, after I made money in another 1 mil guarantee on PS i attempted to steal the blinds with AK by pushing all in from late position, only to find the player to my left call off 1/2 of his stack with 66.

http://www.pokerhand.org/?274905

I've read HOH 1 and 2 at least twice each. I need help in this area of the big tournies, I can't seem to steal enough blinds like I can in SNGs because of the full table. Any suggestions or comments are welcome. Thanks.