Regarding your choice of stocks (grips) - how they feel when holding the gun is certainly important, but how they work when shooting is as least as important. I'd guess most people would have a difficult time keeping this gun on target with the smaller service stocks - just not enough wood/metal area to grasp.
Also, it is not so much as issue with a .22, but if you ever move up to a bigger caliber gun with the small stocks it is difficult to maintain a consistent grip with firing, and you may find yourself having to reposition your hold with every shot.