With all due respect Ed(and I do respect ya, Ed), youre probably losing sales, and some die hard Sick Child followers, by not at least offering brake mounts as an option. Ive been seeing more people floatin around the lots with rear brakes again lately. Brakes arent dead, for some, they just offer another level of fun.
Heres some truth...
Recently, a friend wanted to play with rear brakes. He loved his Instrumental frame, but had to sell it to get another frame with mounts since you no longer offer that option. Point being, you lost a customer who really loves your product. If you still offered mounts, he more than likely wouldve bought another Sick Child frame. Just sayin.

RIDE ON!