You haven't mentioned if you assembled this yourself, or had a dealer put it together. If the latter, I'd be all over his case.
It totally sounds like a setup/alignment prob, or a bum cart. Shelter carts are - to me - the new kid on the block, and the current buzz. IOW, I've never heard of them before until here. Which doesn't really mean too much, since any cart can go south, but you may have trouble finding a dealer experienced in setting them up.
I'd recomend Elliot at the Tweak Shop in Santa Rosa, but he doesn't handle any of those products...
It totally sounds like a setup/alignment prob, or a bum cart. Shelter carts are - to me - the new kid on the block, and the current buzz. IOW, I've never heard of them before until here. Which doesn't really mean too much, since any cart can go south, but you may have trouble finding a dealer experienced in setting them up.
I'd recomend Elliot at the Tweak Shop in Santa Rosa, but he doesn't handle any of those products...