I'm a sky-puller. I started sky-pulling back in '87 when I started shooting a compound. The choices for a cheap, left-handed,lower-weight compound in North Dakota were rather slim.
I had to get a bow with a 28" draw. It was a lot easier to pull it back by sky-pulling than just straight back. Nobody told me it was bad form. (that's not my only bad form issue either...It's downrightentertaining to watch me shoot)
I have a 26.5" draw Equalizer on order right now. I'll have to start using a release. Sky-pulling and a release is a bad combo. I'll need to start working on my form. [:@]