If they say the set-up is right, maybe the table/arm isn't the problem. The problem may lie in the cartridge. The Sumiko Pearl is a very underwhelming cartridge, to say the least. I would ask the dealer if he has a good demo cartridge he can mount in it, and see if that's the problem. The Experience2 isn't that bad a table, and my advice is if it turns out to be the cartridge, get a replacement cartridge, a little better-sounding one, (and obviously one that works), and keep the table you have and get used to how it works, how to set it up, and then after you've had it a while, then maybe you'll have a little better idea of what your next move should be. Just my opinion, but small steps at first might be the way to go.
Regards, and best of luck, Dan
Regards, and best of luck, Dan