Should the platter and plinth be level?


Greetings all -

I've always made sure the plinth on my Rega P5 is level using a carpenters "bulls-eye" level. On a whim the other day I popped the level up onto to the platter and was amazed that it did not show it to be level. When I move it down to the plinth - it's showing level.

Don't misunderstand me - it's not a dramatic amount and if I eye-ball the platter and subplatter in relation to the plinth it all looks to be fairly level.

Should I be concerned that the platter is not rotating exactly level to the plinth? Should I adjust everything so that the platter is level and not worry about the plinth being level? I've checked speed, etc. - and everything's working smoothly without any problems so I suppose I shouldn't be worried about it but can't help thinking it's a bit odd.

Any input would be appreciated - I'd also REALLY appreciate anyone owning a P5 or P25 if they wouldn't mind checking to see if the same anomoly exists on their tables - maybe it's just the way it's designed and assembled.
slate1
It's possible that the well in which the platter shaft and bearing are located is not perfectly vertical, which would make the cause the platter surface to be out of parallel with the plinth. In the situation you describe, it's more important that the platter surface be level than the plinth, since the tonearm and cartridge need to be level for the stylus to track with equal pressure on both sides of the record's grooves. However, if there is much misalignment between the plinth and the platter, I recommend that you take the turntable to a dealer that has experience with turntable setup and ask for an adjustment.
My P3 did the same thing. I always made sure the platter was level. I did this because that is what the record and arm wil be sitting on.

Cheers,
Balance
You need to level the platter, not plinth, for the reason given by Sdcampbell.
Thanks everyone - glad to know it's not just mine and I'll re-adjust so the platter is level.