Playing a live MTT we get to the final 3, I am the shortest stack of the table with 150K (Blinds 10K/20K 4K ante, no-one has more than 15BB I believe) and have just turned down a deal based on chip stacks as I feel I can play for more.

I've been shoving in a lot of spots and have chipped up. The other two players have been very tight folding an A face up a couple of times to my shoves.

I get A2o on the button after shoving last 2 hands (got a walk in BB). It seems like an obvious spot to shove as I believe you should be shoving any A as the short stack 3 handed. The way the dynamic was at the table (me shoving a lot of hands) should I still be shoving? I know it seems like a silly question but I had trouble pulling the trigger...

Can you confirm my thinking that I should 100% shove any A pre flop 3 handed?