I did find that I shoot better if I take my glasses off, and then set the scope to focus for my naked eye.
I do the same thing
Cayugad, but only with my Leupolds on 9X. I find I can keep my glasses on with the 4X ProDiamonds with no problem, using the fast focus eyepiece to clear everything up at any range. But I can't do that with higher power scopes.
Old eyes ain't fun!