NLCASH how do you guys feel about playing shorstacks?

[overAchiever]

I am pretty new to headsup, I have played quite a bit of 6max. So far I have been playing people that buyin for 40bb because they generaly seem pretty bad. I do not play against people that buyin for less then that, just doesn't seem that great.

Is playing the mediocre/bad players that have 40bb very good for bb/100 hands? Also, what do you guys do when you get the guy that bought in for 40 to say 25bb or less?