RE: 3-D Pro's Equipment?
Most pros use spring steel rest,not drop aways.Slide bar sights and scopes.
Longera-a and higher brace height bows.
Bt or hand held releases.Carter and Tru Ball area couple that are very common.
There aren't specific brands that most use because they use what they are sponsored by.
Mathews has the most shooters in 3-d but Hoyt has more shooters in fita or nfaa type shooting.