I know this has come up before, but the last time anyone relpied to those threads was in 2007
Bass-ically, do you prefer high action or low action?
And this may sound stupid, but what is all the millimetre stuff about? Is that how tall the saddle is or something?
If it's any constellation, I have my Yamaha RBX765A at high action... it was just clunky before, not really much sound coming from the amp other than the sound of the string crashing against the fretboard.