It is an “adjust until you find the sweet spot” for each rifle.  Having said that, I have several dozen 75’s and most of them prefer the band to be loose (at least with my stock hold).  Your personal experience may differ.  Honestly, I think the barrel band on the 75 is more marketing hype than an actual improvement to accuracy.  I have always had better groups with a solidly beded action and free-floated barrel, but, again that is just my personal experience.

Best Regards