Hello,
As a professional sharpener, I find the RB-180 (rotating base) essential and even vital. In fact I think that Tormek should bundle it with every T8 they sell...
However, the smoothness of the rotation is not great. The solution I found is to use a silicone based lubricant (silicone oil). This product after it has been applied, dries almost instantly and leaves a very slippery, but dry, surface. So it does not have the inconvenience of a normal oil (WD-40, mineral oil, gun oil, sewing machine oil, Ballistol etc.).
I respray the area every month or so and the rotation is now quite smooth.
Hope this helps.
Good idea. I have Super lube silicon grease. I'll test it.