The Royal Arms grip was a failure. The hole is simply not in the right place.
Ended up using a gift certificate i had for an ERGO 0 degree grip. AND decided to swap the stock onto my .20 Vet Short.
The difference between a Standard and Short Vet are of course the length of the air tube and barrel, but also the LOP is shorter on a Short, by about 1 inch. So that makes stock swaps not doable. And the trigger rod is the only thing that makes the LOP shorter. Ie trigger rod determines where the scope towers/air tube/barrel clamps are located, which determines which stock inletting fits. BUT I have a unique situation of needing a shorter LOP on the .177 Standard because it is the gun shot by my younger (smaller) son. The Shorty stock also weighs much less than the chassis stock.
Soooooo, I swapped air tube/barrel clamps from the .177 Standard to the .20 Short, and vice versa. This made the chassis stock fit the Vet Short. And while I call it the .20 Vet Short, it actually has a bit longer barrel than OEM, and also has one plenum extension. All of that together = this...
And the best part is that it keeps it 26.5" long, which allows it to fit in the little briefcase type rifle case this gun has lived in since 2018.
And the mirror of that is the .177 Standard, with the Shorty stock....
And next to each other, the perspective makes the difference in length seem more than it really is.