So here's something I've been wondering... are the parts from all of the various brandings of the 510:
1. Manufactured by Joye but occassionally to different specifications
2. Made by different manufacturers but functionally identical with occassional aesthetic design differences
3. All compatible/interchangeable but made by different manufacturers and have variability in functional design, performance, and/or appearance?
I think that's the right way to ask what I think I'm wondering about... but me am looking at it and myself thinks that I is maybe confusing me...