Taters, The KAB Strobe is pretty much the gold standard to have for Belt Drive Tables. Without some form of Motor Controller, (PLC-SDS, or Walker) the Stobe might show you have a +- error, but you won't be able to do much about it. Belts need to be periodically changed, it's the nature of the beast.
Are you absolutely sure your Stylus is clean? What do you use? If not the Mr Clean Magic Eraser, you might want to read up on some of Doug Deacon's methods for using this tool in the archives.
I personally think the original Aries is a fantastic Table, and a very pretty one as well, but with any table, there has to be synergy of Table-Arm-Cartridge-Pholo Stage, and even Cabling, and also as important, critical, proper set-up of Arm-Cartridge.
The Benz's are very good Cartridges, very versatile IMO, work well with virtually any Arm, and I've had two in my lifetime, the Glider, and still have the Ruby 3, with almost no use on it.
They're warm, smooth, nice mids, nothing seems to be lacking, relative quiet in the groove, but......
When I swapped to a new ZYX Airy 3X, this was a Cartridge I liked better than the Ruby 3, seemed to have better speed (If you wanna call it PRAT?) detail, less bloat without the sacrifice of any bass response, cyrstalline highs, and a Cartridge that I found was even quieter in the groove. (All were used on a VPI Modded HW-19 MK-IV Table)
We of course cannot perhaps persuade you, if you have the bug to upgrade to another Table, that must ultimately be your decision. A mint condition, used VPI SDS could be gotten, and if you decided to still then sell the Table, the SDS could probably be sold again, without any loss of money.
