Originally Posted by Staska
If your really trying to squeeze as much paint out of your Geo I would screw the VVC screw all the way in, chrono, then get the dwell as low as you can without velocity dropping off, and either match your paint or under bore. Some people say the GST kit helps it some, I wouldn't know.
Geo's aren't known for the best efficiency, but they are great guns.
I love my geo, lol, and i screwed the VVC screw in all the way today but i was still having that problum, i think i might change barrel sizes though, you may be right it may just be a bore size problum