[goldentrigun]

I haven't looked into the sr25 gearbox mostly due to the elongated piston etc. Does that have the same inherit problem of front end cracking that plagues most v2 gearboxes?
Gearbox flaws would be the biggest thing if I were going to chose between the two.

 

[goldentrigun]

A piston spacer as on vindis thread would eliminate that problem and allow you to use normal v2 gears. Although at that point I would rather get a m4/m16 body with a std v2 gearbox which has more parts available.
It's really up to the OP though. I'm going to wait until he replies until I post anything else.

 

[goldentrigun]

The lowest ratio siegetek gears in stock are 27s. The 20:1 ratio gears in stock are still for ROF setups.

 

[goldentrigun]

Nope its not. If you look on ASGI's website the 20:1 ratio gears are of a DSG design. Therefore ROF not FPS.

 

[goldentrigun]

Alright. Im guessing systema is overated then? ASGI reccomends pro installation on siegeteck gears. What ratio should i get, and are they that difficult? I happen to be a gearbox noob, so it worrys me that i would mess it up. Also i heard the g&p motor is the absolute best, but i will look into the acm.

Perhaps because he made mention of ASGI.