Originally Posted by forsakenone
the most efficient shot stack strategy is to rebuy to 100bb.
I agree but OP wants to understand short stack, not apply it.
I have never done it and prolly never will but I know someone who did it profitably for several months. It's mostly about SPR manipulation iirc... TP type hands go up in value and drawing / implied odds
hands go down. It gives less room to manoeuvre for both you and your opponent (floating, for example) and although you win less when you stack off good, you lose less when you make a mistake. You will often get looked up lighter when you push all in too.
Basically post flop decision making is easier for you. You're often all in on flop or turn and you can really play tight aggressive with your best hands. But personally I'd feel sick only getting half a stack if I flopped a boat.