Pre-Bus ... good idea? dumb idea?

I got a brand new vdrum setup that I run directly into Superior Drummer...LOVE IT!  The issue I was having is that when I have the phones on to play and record the vdrums they sound much lower in the mix than they do when I'm sitting in front of my monitors.  I have them going to their own drum buss and then to the master buss but turning them up loud enough in the cans causes them to clip.  I decided to create a "pre" master buss.  I routed everything in the song to the pre-buss, except the drums.  I turn down the pre-buss and leave the drums buss to the master alone.  It works great.
 
So ... all instruments to the pre -> to the master
vdrums to drum buss -> to the master
 
Turn down the pre and leave the drums alone.
 
What say you?  

I use the headphones because there is a build up of bass where I have to set up the vdrums.  The headphones cleans that up a bit.  Yeah, I like the sound of Superior Drummer much better than the vdrums module...personal taste.

i do this all the time.
 
you want your 'recorded' signal routed to a drum buss, and that routed to master,
then you can create a buss for everything else to go to, to be able to adjust the over all level of the other pre-recorded music.
 
if you use sub busses, it's as easy as just temporarily routing every buss except master, to a 'temp' or 'background' buss, and route that directly to the sound card....
 
then you have total control of the levels for the drumming monitoring in the cans, 
without messing with any of the other mix elements.
 
re-route all the busses back to 'master' after you are done tracking.