We're on the same boat, my VSR creeps like a motherfucker on 0.4s gains a whopping half Joule from 0.2s (and I run a 300mm inner), which is 0.4J more than my limit -.-
2 points. Is the hop set correctly? If the hop isn't set then you may be lucky and it may just pull it down a touch once you've set it.
New spring? If it's new it will bed in after lots of compressions.
If not a new spring, heat it (kitchen hob) and press onto spring guide to collapse a coil, if it's a bit too far under you can always put a booster ring in.
@Skara Probably me, I use a mountain bike headset press I bought on eBay for £7.
The problem is, compressing and leaving compressed doesn't do as much as constantly compressing and releasing. The old trick of leaving the gun cocked just strains the sears.
@SteveoceeHop up isn't set, but that will have to wait until my local site re-opens, as I live in a city and don't want a visit from the local police (who are just down the road!). Spring isn't new though, it's a 130sp Laylax that I've had for a long time and used a lot. I'll probably just wait until then, take both it and my HPA VSR along so I at least have a gun to use for the day, set the hop and then chrono (HPA I can just put at whatever power I want, after all...)
@sonofsammoYeah, .43s would work as the joules I need to lose are tiny, but I want to use .48s, so that's my goal. My HPA VSR setup uses .48s, after all.
@SkaraYeah, I only ever chrono on joules because I know that my rifle will easily beat the old 500fps on .2s, which I will never use considering even my 1J guns use .32s xD