[vindicareassassin]

Just so you know I only get 380 out of my 120 spring, but if you refer to the last part of my super vsr thread and look at the spacers and make something similar you can get dam near 450. One thing to be aware of is becoming spring bound, which means the coils are all locked together before the piston cocks, the remedy to this is to use a slightly shorter spacer

 

[vindicareassassin]

The advantage to the spring spacers is that you cant cut to much off, like you can with spring clipping. You have the advantage that when you test and find it a bit to high, or low, you can fit a spacer that is 1/16th smaller/bigger and fine tune your fps to be as near to what you want, as is humanly possible with clipping you will find this to be a much more hit 'n' miss affair that is non returnable if you take it to far, and you then cant space it to return it as the cut will either slip off the spacer or if you fit it the other way round, into the piston, it will gouge holes in the back of your cylinder head. Both are not good. I use spacers all the time to get a standard spring up to 350 fps so I know they work and are effective, plus they are a darn site cheaper to replace than a spring when/should you fuck it up

 

[vindicareassassin]

It works along your the lines of your first theory, Basicaly the spring is held under higher tension right from the start increasing its static pressure. So when its asked to perform its usual function it starts and finishes its stroke with more compressive power

 

[vindicareassassin]

Aeg springs wont fit inside the piston, stick with stuf designed for the weapon then at least we will all be singing from the same page when questions need answering

 

[vindicareassassin]

Knowone said it was a cheap process mate, being able to do the things I do helps, but I still need to dig deep on occasions