Roger,
I had read in one of your posts that the RM-200 design was a very flexible one.  The fact that you have a 100 wpc variant, a monoblock variant,  and a 30 wpc triode version would seem to bear that out.  How straighforward is it to switch between the 100-wpc standard version and the 30-wpc triode version though?  What would the cost be for you to do the conversion should I want to give it a try?  Thanks.