Since he can't reply here, apparently the Jelco arms *can* have iffy bearings... Never used one and have no personal experience sadly. These days, a Jelco 750 is a low cost 'budget' tonearm, since all the competition has rocketed in price (what the fugg are SME playing at with their costs?).
The SME 309 IS a damned good tonearm, the detachable shell possibly giving advantages other than flexibility in my experience. Mind you, it was well under £600 and I think slightly cheaper than an Ittok when I used one extensively.
As for spending thousands on a techie when you could buy a Hyperspace instead, I've already expressed my positive feelings on NAS turntables many times, so no need to stir the pot further
Doesn't mean I dislike the techies though, 'cos I don't at all!
I can't go on and I can't go back, I don't feel so matter of fact,
I tried and tried to make good sense, What's the good to try it all again?