|
GBBs are typically made to perform with 0.25g or heavier BBs in mind. They will generally not be able to adjust low enough for 0.20g BBs (as you have experienced.)
Secondly, because of the increased weight of the slide, it's normal for performance to be more sluggish than before. This can be counteracted by installing enhanced recoil springs.
A hammer spring only makes your velocity more consistent, possibly higher, and will make it possible to crack open the valve on a propane filled magazine on a hot summer day. Actually, even some propane filled magazines can't be cracked open with a stock hammer spring at room temperature.
|