Yeah Dan,
Ha ha... coupla units!
Where did you find the schematic?
I don't recall if it is in the manual or not, I think I downloaded that a while back.
One idea on the mic pre is to use some better ICs... that should drop the noise, but I doubt that the noise is much of an issue for us, unless one uses a low output mic.
Overshoot on the limiter? Don't care at all, have the 3 diode limiter in the modulator and I like my positive peaks... more interested in keeping the levels up if I back off the mic a bit... plus the free mic preamp makes it easy to plug in a "fancy" mic. Gotta rig up a PTT though.
_-_-bear