Bill, I always thought Roland sounds fine without compression.. Actually when you think it needs it... it is mostly because the sound system is letting you down..

When I used the G70 in the band, and using the band sound system.. I would not have the mastering tools on.. but if we were doing a tune and I felt I needed to change to another gear, I would use the EQ bump and if I really wanted to kick it up, I would turn on Compression.. I usually used custom settings. And on the G70, just a button push away..

The BK9 is shipped with Mastering tools turned on... Standard eq and standard compression.. I always thought it was a bit too much, and would turn them off.
Both my Marantz and Roland cubes did not need the mastering tools on..