Hope you weren't confusing me with "expert"--I knew of the ML4000 enough to recognize it on sight (ads for it were all over model railroad mags in the '80s/early-'90s, which I've been building a library of for a while), but it still took some quick Googling to come up with the background data.$ally said:Wow, see what happens when you post in FL? You never know who will be an expert in some obscure area.