I believe turning the output on the R09 up to 100 is also recommended to give the patches a full charge. I believe that is unity gain on the output.
You may be confusing the original R-9 with the HR, Joe. But neither have unity at 100.
Not sure what you mean by
full charge?
R-09 gain maxes out at 30 (noisy), unity is around 13, no-go below 8.
R-09HR gain maxes out at 100, unity around 50-ish (I think, but I don't own one, check the HR thread), no-go below ?.
The information and discussion about gain/level settings is in the early treads on those recorders. Common guys, what's with posting numbers from all over the map? The R-09 gain information has been long established at this point.