Hey man, got your snaps, sorry didn't get a chance to respond but I hadn't been around marshallforum for a while. Looks good and glad to hear it worked out well for you!
Keep rockin'!!

Hi, Paul,
Did you recieve the images sent in April? The first is of the NFB select mod, and the second is the installation of the plexi mod we were discussing. I also did the mod where a 330pF cap bypasses R3 on the input. Both thicken up the tone well without going too far. I like! Cheers, Frank