Originally Posted by
Jack Wood
I would try the gun first and see how you think it shoots. There is some variance from gun to gun.
But, tyronejk is correct that it is the bolts forward speed that dictates how a Geo sounds and feels. To be more accurate, it is how fast the main valve opens.
The SFR on the 3+ allows you to slow the bolt speed down by restricting the exhaust air out of the pneumatic sear. But the IVCore also slows down the opening rate with the bolt porting.
So the 2 with the IVCore will sound and feel different to a 2 with a standard core, but it wont neccessarily feel or sound as nice as a 3+ with the SFR turned down.
Hope that makes sense.
Jack