For a couple of months I played with tubes and speakers and just couldn't get what I was looking for...  So, this afternoon I boxed up my JCM 800 combo and will ship it out to Brian tomorrow.  I really like his Angry Beaver and Shaved Beaver clips.  They sound like what I think a modded Marshall should sound like...hot rodded, but definitely still all Marshall.  I talked to Brian and he seems like a very cool guy.  I also got to chat a bit with some very happy BFG users.  What I really like is that Brian has extensive experience with SLOs...and an SLO is my main amp.  I definitely don't want my Marshall to sound like an SLO.  But it made it a bit easier for me to explain what I was looking for...a Marshall that is all Marshall, but rivals the SLO in gain and articulation/note clarity; maybe with a little more thickness and bottom, but without losing too much of those beautiful (some people call them "piercing') Marshall 800 highs.  I don't want a dark amp.  Yeah, sounds simple.  While I was explaining this "sound" to Brian not once did he call me an unrealistic idiot.  LOL  I really am looking forward to hearing what Brian can do with this little combo.  I think if he gets it to sound something like in-betwen the other Beaver mods, I'll be pretty happy.  Maybe we can call it the "Between Beavers" Mod.