One more vote for Machingers though I have not tried the Betty Bands. I have some arthritis in my hands, and the very slight compression of the gloves helps a lot. Yes, I have to take them off to rethread or to change a bobbin, but I don't do that very often since I'm lucky enough to have a machine with M-sized bobbins. I remove them off whenever I take a small break from quilting, which is generally every 45-60 minutes. I just can't keep my concentration longer than that! I also quilt in a cool basement so I've never had a problem with them being hot. I sure wish they were a different color though. The white color picks ups color from fabric and leaves the finger tips looking dirty very quickly!
Pam