Expo Holdings Inc. (EXPH)

[Stock_Barber]

"added to patent as adendum 1 part# 001-2"

You can not add design features as an addendum to a provisional patent. At the point of filing a real patent, you can elaborate on details, but if they weren't disclosed in the provisional, you'll have to file an additional patent.

FWIW, your approach is infinitely better than theirs. I haven't done a thorough search, but I suspect that it wouldn't be patentable. Additionally, your post just legally became "prior art" on that idea, so they could no longer patent it... you could, however.