TW Raven Owners: Set Up Questions


Through the magic of sweet talk, I turned my Orbe into a Raven and mounted my Graham 2.2/Benz LP.
I am looking for a isolation base for the Raven. I have a 1 3/8" piece of granite coming soon so I can ditch the MDF I use now (a temp. meas.!) Symposium, SRA, HRS, etc., can anyone share their experiences with isolation bases? I saw the thread about loosening the Stillpoints.
Initially I had an issue with using the rough side of belt. The belt shimmied up/down on the pulley at a specific spot on belt. Also, the speed fluctuated and I could never get it dialed in with the PSU. So, I went to the smooth side of the belt and then raising the back side of the motor (unscrewing one of the isolation feet) slightly moving the belt down from "center" on the pulley. This moved me from 33.2 to 33.3 and I have no more belt shimmying and the speed is rock solid.
I'd appreciate any tips/tricks etc.
gerardff
I used my Vibraplane on the unsuspended SME Model 10 and noticed a significant improvement. I now have it under my suspended SME Model 30/12. I would say the improvement is only very slight as the 30/12 already has a superior suspension and I don't think that the Vibraplane offers much additional isolation.

I have also heard the Vibraplane under unsuspended Brinkman turntables and the sound was extremely good, though I can not say what actually contributed to what in those unfamiliar systems. I did hear though that that Brinkman dealer sells a lot of Vibraplanes for his tables.
*Warning* a tad lengthy!
I had another lesson in Raven ownership the other day. I just could not get over how slow the perceived pace of LP's sounded. Everything sounded as if it were being played as a funeral march and I was hearing what sounded like "wow" (low note wavering) especially towards the last two tracks of an LP. Now my Michell Orbe never sounded slow and was a great pairing with my Naim amp/preamp. And I never detected any "wow" type fluctuations unless the LP had a off center spindle hole. The other very curious thing was that my room has a notorious upper frequency bump with notable reflection traits, and the Naim gear I have takes no prisoners on poor recordings ie., 60s-80's Rock. So, when these traits vanished I was shocked. Had the Orbe added that much extraneous noise to the playback? But it sounded so slow paced, no drive, no rhythm. None of this was mentioned on the Naim Forums, always good reviews. After days of head banging and freaking out, I was about to call High Water Sound when I remembered a review that mentioned something similar and it involved adding too much oil. I re-read the review and recalled how despite my best efforts to use very little oil, I sprayed too oil and did find a small puddle at the base of the bearing a few days later which I cleaned up. So, I removed the platter, cleaned both bearings/shafts and re-oiled very, very, lightly. NOW the rhythm and drive were much better, though not Orbe beating, HF extension returned since some of the HF nasties my room is noted for were back. Interestingly though it lost a bit of sound stage width/height and some detail. The perceived "wow" improved but did not disappear.
Raven traits: inner detail retrieval is greater vs. Orbe and VTA changes are MUCH more noticeable. In fact, I believe my VTA settings are quite different (higher) than on my Orbe. I'd have to pull the arm to get a comparison.

Comments appreciated, especially from Sonnyboy1956, former Orbe owner.