Opus, I had no real trouble at all. I first set spindle to pivot distance using the supplied tool, then mounted the cart. I used the supplied alignment tool (Baerwald) and then fine tuned it with a Mint LP protractor specifically made for the TW 10.5 arm. The XV-1S fit snug in the head shell, but still is easy to set up. I agree with the previous poster that the XV-1S is a good match with the 10.5. I'm very pleased.