Dear Wjsamx, That has to be the most well controlled and precise comparison of two turntables that I have ever read about. If only audiophile publications would ever do as good a job. In the end, your opinion is subjective, but at least YOU know that the differences you heard must arise from differences in the two turntables.
Someone asked about the differences between the Bardo and the GP Monaco. The Monaco has an incredibly elaborate motor control system and uses a very expensive motor, but beyond that you probably can find the info on the GP website. One question would be whether the Monaco motor is coreless, etc. Obviously, the two tables differ in platter mass and construction and in overall mass. I would expect them to sound different.