Since Craig posted some good information on this a few days ago, I've been playing around with the idea a little. This is Craig's original post:

http://www.airgunone.com/forums/showthread.php?t=358

I got my G1 shooting clovers with CHPs at 20 yards. While shooting a little this morning, I started feeling the piston tail grinding against the compression tube. I pulled her apart and added a button which solved the problem, but when I started shooting my groups opened up to about 1". WTF this ain't right...

I then recalled Craig's post and started messing with the tension of the stock screws. I didn't use a torque wrench, but found a sweet spot for all screws (3 fingers tight) after messing with various hand torques. I used a rubber washer for the rear of the stock and strips of duct tape for the front. My rifle apparently doesn't like being too tight against the stock and now she's back to shooting clovers at 20 yards. I'm just waiting for the loctite to set now. Just what I need - another springer variable to mess with. Someone should make a "suspension system" for springers...

Thanks for the info Craig...

i was thinking of lining the bed with thin rubber like from an inner tube.
or removing the materail from the stock that comes in contact with the action and only leave the material in the three mounting areas.
also using gasket making material to fill spaces where the stock an action come together.
i think there is alot going on in this area as far as helping to smooth your gun out after the tune.

I had the same thought about removing material when I couldn't the screw holes to line up from the thickness of the rubber washers. I thought about boring the stock screw hole a little bit from the inside so the washers would sit right in them. I decided to save it for another day, since this is the only stock I have and used duct tape instead. Since the gun behaves so differently with cushioning in just the 3 points of contact, I'm pretty sure it may change drastically again with a full on stock bed...

also the stock is hollow in the end, this should be filled with foam or silicone to help dampen bad vibes.

Yup, I got mine stuffed with polyester (pillow) filling. I just re-zeroed in at 20 yards and she's stacking again. I have to take a long break though cause the safety sliced me right under the fingernail as I was disengaging it.

ouch.

You know, this got me wondering if "tuning" your stock can help open up a rifle's pellet preference. I noticed different groupings with various pellets every time I put the stock back on. Yesterday she liked superdomes. After removing the stock to debur something and putting it back on, superdomes were suddenly out of the question and she suddenly liked chps again. I'm pretty sure it had to do with the tension of the stock screws. Right how I have it set just right for chps, but superdomes won't even hold an inch.

it is time for me to run accuracy trials again, but it is quite cold out.

i would say it is best to do this to your gun when all else has been done so you will not have to take it apart again.

I'm experimenting with the dreaded Quest to see what I can make of it. I'll let you know the outcome.