how are the leads attached to the frame? if velcro is used you can take the leads off- go to your machine- baste the quilt components to the leads and go back and reattach the leads to the frame....basting is much easier-faster (all though i've been pinning mine on for years- and big quilts can easily take 400-500 pins by the time i am done---machine basting is always an option-
but it does depend on how they are on the frame....if they are permenently attached to the frame could you hand baste them easier than pinning?