Then why get so bent? Sounds like the guy told a little white lie to prevent a long & drawn out conversation that wouldn't improve the sound or your performance in the least. Professionalism is never optional, but if I saw a guy roll in with an SVT over an 8x10 in a small room, I woudn't take his FOH advice too seriously. I would be respectul and professional, but I sure wouldn't do as he asked merely because he asked for it.
My comment about the mic on the 10" was not meant to downplay the usefulness of a mic on a cab - it is in fact my strong preference to rely mainly upon the microphone whenever practical. What I was trying to point out was that the miced signal in that case doesn't really represent what those cabs do in space, and that it's not as important as one might think given how much that rig can fill a room without even trying.
The FOH guy was probably just trying to get some definition happening through the mains. I believe you when you say you weren't blaringly loud, but even barely working, that rig puts out a lot of sound into a small room.
I learned a long time ago to learn what works in a given situation (or at least listen to those who know) and just do it rather than get too emotionally attached to "my way".
Basically my point was that this happens all the time. But this time someone tried to deceive me, and thats low.
These di threads always turn into a flame fest.
P.S. Since my rig obviously means nothing and is too loud and a waste someone should message me with an offer on it and take it off my hands. After all I am an amateur and have no idea about what I'm talking about.