I typically finish 1st or 3rd at the end of a tournament; very rarely do I ever finish 2nd.
I shove… a lot. When I get to HU, it’s more important to me to play the person across the table than bog myself down in the math. I will continuously hammer away at an opponent playing too passively or nitty at this stage in the game until they stop or I win. Short stack or big stack; it doesn’t matter to me.
All that said, my range will shift away from mid-rank suited or connected cards and more toward one or both cards being high ranked. Against one opponent, high card or top pair are more likely to come out ahead if you see a showdown.