The F500 will eat the Shuttle 6.0 alive!
Hmm, Markbass need to make a new higher powered F700!
I would suggest, possible, looking at the Genz Shuttlemax 9.2, or the TH RH750.
The RH750 can get very sparkly if you want it to. Also, it is very clean if you want it to be, (just ignore tubetone) and the EQ is great. Very high quality...id say out of all the micros, the quality of build is on the top.