get a reputable gun tech.
Well if you're going to play indoor with this gun, then it's better to leave it at the indoor velocity, you'll have to live with shooting 10-15m less than everyone else.
If you find yourself playing both equally, getting a second gun will save you some grief and cost you about the same, and give you a backup in case something goes wrong with your one.
280 with a .25 is about 310fps I think. The physics aren't in your favor to be competitive with this setup.
a 120 spring with proper setup should be shooting 410-420 with .2s Only the really knowledgeable techs will start manipulating other parts of the gearbox to bring a 120 down in power, and that's through changing the length the piston draws back. It's not something most spring swappers will attempt.
I futz with V2s, V3s and V6s. I could be wrong... but probably, most likely not, as far as I know.
Last edited by lurkingknight; November 4th, 2014 at 22:15..