Les,
I'm with you to a point.
I have jag vents on the front and solid jags on the back.
Breaking at speed on the straight, I might as well forget the rear brakes as all breaking power feels as though it comes from the front - its the only time my front end goes down
(still too low at the back)
Yet into a corner is a different story...........
You can feel the backend braking, nearly as much as the front and if your not careful its very easy (at speed) to loose everything and become an olympic floor gymnast!
I have a problem with the inboards on these cars (No 15 on the to do list). I think there is too much heat around the diff caused by breaking and coupled to the rear suspension design (DRB's only) it just does not make the back end perform as it should - may be just me, but may be for once I have a valid point.
When I get to No. 15 on my list, I will seriously consider changing the back end to a more traditional setup with an outboard brake system with twin shocks and coils.