If you had that much difficulty with a double, I would definitely split the batting for the queen size quilt. This will make it much easier to fit under the throat of the machine.
Basically what you do is layer the backing and batting as usual, but then cut the batting into a middle piece and two side pieces. Layer the top on this. Quilt the middle section first, leaving about 6" on each side so you can re-attach the batting later. Reattach batting using iron-on batting tape or zigzagging the edges together (by machine or by hand) and finish quilting the sides. This results in much less bulk needing to be crammed under the machine throat while you are quilting the middle. Be aware that there are some tips that make this easier. Search here, or check out Marti Michell's book on the topic. For example, you want to make sure you create registration marks on the batting when you cut it, so that you can re-attach the batting exactly as it was. You also want to be sure and label the top of each piece. The end result is that no one can tell you quilted in sections!
Oh, and I tried the bicycle clips years ago. Useless. If there is too much quilt to "puddle" or accordion pleat under the arm of the machine, it's much better to split the batting so you can quilt in sections.
Here's a link to Marti Michel's book:
http://www.amazon.com/Marti-Michell-...dp/B0002J5GX0/
I don't have it. I learned the sectioning method above from one of Debra Wagner's books.