Inertia - the property that tends to keep moving bodies in motion and bodies at rest motionless. The greater the mass (weight) of an air rifle, the more energy it takes to overcome the inertia and start it in motion again, once it has come to rest. The heavier the rifle, the better you will eventually become at holding it absolutely motionless for the critical fraction of a second it takes to fire accurately.
I don't perceive that the COG of the Walther has been moved forward very much. Rather, it seems the barrel weight is more to balance the overall weight of the rifle and off-set the weight of the heavier German walnut stock, but perhaps I am wrong.
Shooting with a padded glove on my right hand (I shoot LH) seems to help. I use an old weight lifter's glove rather than a true target shooting glove.
Raising the front and rear sights with 2 cm Anschutz risers, spacing out the stock 2 cm, and dropping the rear recoil pad 2 cm means I can bring this rifle to a firm cheek weld just under the zygoma (cheekbone) without bending my neck to one side, and with the diopter sights lined up in the center of my visual field with my neck and shoulder completely relaxed. Every other rifle I own requires some degree of bending my neck or "hunching up" my shoulder a bit, or both, to line up the sights properly. For critical target shooting, any tension in the neck or shoulder is a bad thing.
If you are serious about learning how to shoot off hand as well as you possibly can, then, 1) buy a copy of "The Ways of the Rifle" -- best money you will ever spend on the hobby of target shooting -- and, 2) make sure your rifle "fits" perfectly. To my friend J. Woodcock, I say "thank you" for pointing out both of these truths to me early on, just when I started to get hooked on air rifles, and for pointing me toward the Walter LGR-U and encouraging me to take the leap. This was my very first target rifle and my very first dedicated LH stocked air rifle (big step for a right-hander).
And as for that 10-meter rifle on the "yellow", go for it! In my opinion (an amateur who has been non-competitively target shooting air rifles less than a year) my attempt to master a 10-meter air rifle has taught me more about the sport of shooting than anything else I have learned the previous 50-some-odd years. Of all the air rifles I own, my Walther is probably be the last I would ever consider selling.
