I agree - this is the most sympathetic way of mounting a scope that I have seen. I once bought an early 1920s No 2 Standard with visible etching, where some former owner had mounted a scope ramp over the etching. Truly sacrilegious in my view. To cap it off, the ramp was not really strong enough to handle a recoiling scope for more than a few shots.
I do quite like this set up though as it appears to be completely reversible.
John