g3's aren't bad, I don't like them because of there size and it feels like a toy gun in my hands. But if you like tiny and light then sure.
get a HPA tank instead of LP because you can adjust the reg on the gun. If you get to low of a pressure output on the tank you might not have enough reserve pressure for the next shot there for lowering your consistency.
I've always used empire b 2 bored and never have a problem with them. Altho the prophecy isn't a bad idea ether.
If you want light I recommend that you get an ego or dm7. both are good matrix's have there problems but if you have some idea of how to fix things they are not an issue.
Marq's are also a good idea but most people don't like them because of there air consumption.
my setup is a marq rapper with gorilla air tank adapter torpedo reg, empire b2 board and freak kit. Also i use a dragon with apocalypse 2 tank reg aka 2liter empire b2 and freak
