Hi Aaron!
Thanks for the compliments on the template!
To answer your questions:
1) When you press "PARAMETER" on your 8P, it WILL jump to the parameter and show the value it currently has, updating live when you turn a control.
2) That is correct, the thing is that I actually didn't know what hex value triggered which param state, so I just let the control send the full range. There is no 1 to 1 correllation between the value sent and the actual parameter value on the 8P. For example, some parameters stay "0" on the 8P from values 0-31, and once 32 is sent the value jumps to "1". I don't even know whether the BCR is capable of only sending 0, 32, 64 and so on - so you either have to accept it or try to improve it :-)
Cheers,
Rainer
BTW: if you have an iPad, you could also use it to control your synths using an incredibly useful (payed) app called Midi Designer. I created free layouts for this app for the JX-3P, JX-8P, Alpha Juno 1/2, MKS-30, MKS-50, MKS-70:
http://mididesigner.com/qa/171/roland-jx-3p-jx-8p-mks-30-mks-50(some of these synths obviously need an upgrade kit before they can be programmed by any editor)