Ive short stroked my 177 HW98 to 79mm along with a delrin tophat and 4 thin delrin washers on the spring it was doing 10.9fpe with 7.33g falcons and 10.1fpe with 10.3g exact heavies so more power with lights.

I was finding it a bit liverly so put 4 steel washers in the piston and the gun shoots loads better and extremerly consistent over chrono though slightly over power.

Before -

7.33g = 10.9fpe
10.3g = 10.1fpe

After 4 steel washers in piston

7.33g = 12.12fpe
8.4g = 12.17fpe
10.3g = 11.78fpe

So i have 4 delrin washers on the spring guide and 4 steel washers in the piston, im guessing to remove 2 from the spring guide though which would you guys remove?