Depending on how old your BSR is, you may need to have the dealer replace the spring mechanism. There were some that were faulty that led to skips.
In my experience, I get skips when my thread is not a good match for the fabric and/or batting. Recently I quilted a project for a friend, using her choice of thread -- Sulky. The fabric was a tightly woven batik, she used a heavy cotton batting, and between those three factors, I was having a nightmare with skips. I knew it wasn't my machine, as it worked beautifully on other projects. I tried all kinds of tricks and fixes, and what finally worked was using a heavier needle than recommended (don't cringe, but it was a denim needle). It left a bit more of a punch in the top than I like to see, but after I washed it, that disappeared completely, and the end result was quite nice.
So -- my advice would be to try switching to a different type of thread, try a different needle size, if it's not too late, consider a different batting. If you're having a lot of skips no matter what you work on, see your dealer.
The BSR should be a pleasure to work with, and it should be making your quilting life easier, so if it's not, get to the bottom of what's wrong-- be it a fix or a class or a users club where you meet up with others and see what they're doing, and how they're doing it.
RST