I've never played a BE-100 but I can tell you that my JMP is still a JMP after KS mods, just more Balls and a BEAST ...
Someday I would like a BE-100 and an SLO-100.
Alot of builders seem to replace the base tone of the amp with their own.
The thing about Dave I learned thru forums & youtube clips [yes Utewb] before he modded my Marshall is the Mr. Friedman beefs up the base tone of old Marshalls without tampering or losing the original tone and taylors it to the customer.
Dave exceeded my expectations and then sum.
I wouldn't want anything more or less than it is now.
Plus he doesn't hack-up ur amp with extra knobs ect.
My amp looks stock from the front and the 4 mini toggles on back are low key as well.
I consider him the Leader in his field with honesty & integrity.
FWIW..... $.02