I've long been temped to buy a RiteBobbin, thanks for sharing your review!
My mainstay has been the Umpqua Ergonomic bobbins, simple and they fit my hands perfect, but they have a tenancy to do the dreaded bobbin squeak. Now it doesn't bother me much, but my significant other can't stand the sound. She likes to hang out in the office and work on her stuff while I tie. One night she had enough of the squeak and said "What can I buy you to make that not happen!?". I showed her the C&F bobbins and one showed up in the mail two days later! Excellent tension and thread flows like dream!
...On another note does anyone know how to make a vise squeak? I've got my eyes on a Renzetti Master!
I have a bobbin with brass bearings that squeaks sometime, dubbing wax works for about a season, just a very thin coat wiped on the bearings.