yep, I was taught if you only have skipped stitches in one direction, like moving front to back or left to right, then play around with the needle. It has to do with how the thread is coming off the bobbin in the direction that you are going in. The suggestion for my machine was trying to put the needle opening about 6:30. I got some of those "needle magnets" to help me set my needle where I want it
If you are interested in needle magnets. do a search for "needle magnets for longarm"