There are relatively few situations where other lines are likely to be meaningfully better. Just stick with the basic shove which is fine the large majority of the time.
When you get to 15 - 20 BB's you should still be open shoving most of the time, but with this stack you should be looking to come over the top of loose players opens a lot.
Well typically on blackchip I've been playing turbo tournaments so when i have about 14 bbs in the cutoff or on the button I like to just shove to take blinds
i agree with poker orifice....you could be 7th in chips with 30 ppl left and 13 bbs or you could be 30th in chips with 30 ppl left with 13 bbs....it just depends on the game and table dynamics