Hi Curt,
I upgraded my brake by making a new one out of stainless steel and one of those grey furniture sliders from Bunnings. My counterweights are on a piece of 'T' track which you can slide up and down to micro adjust the balance. Carba-Tec a woodwork shop in Balcatta have 'T' track and 'T' bolts ( and lots of other lovely stuff!!). You can get it from Scopestuff.
You're welcome to have a look through the 28 when she's finally set up ( and anyone else in Iceinspaceland who's interested ).
