Jerry..I found the installation instructions for the B&M set-up on Summit racings site.
I've tried some of the local Corvette specialists here and drawn a blank.
I'll probably go for the B&M unit as and when funds allow. That way I don't have to rely on a vacuum source.
I simply preset my lock-up speed and it automatically locks and then disengages again when I apply the brakes.
As far as hill climbing I guess I'll just have to get used to manually switching it off!
Thanks again
Jock.