Touche’! Audiotroy hit it right on the head. The Phono pre amp is the gateway to great vinyl sound. Based on your current set of components I would put money into a bettter cartridge (Dynavector 10X5) and phonostage (Musicial Surroundings Nova). Upgrading your whole turntable so you can fiddle with azimuth settings makes no sense, the REGA has a very lively, energetic, engaging sound. Be happy with it, at this stage things just get more sensitive from here which can be a good or bad thing. Stay in the fun zone upgrade your REGA ...www.groovetracer.com
P.S. If I was going to find a table that would be a true upgrade without losing the great REGA sound is a J.A Michell Gyro SE....this table (with the Techno arm, a modded RB250) retains all the great aspects of the RP6 but elevates everything in terms of sweetness and detail with better dynamics and much greater sensitivity, Built like a battleship this table has a slew of adjustments and upgrades if thats desired.
Matt M