So I've done the preliminary recording/eq/analysis and interesting the R7 low E string signal is stronger than the R9's...
R7: 9's
R9: 10's
I'm using an SM57 and have a marker for 2" so as to minimize as much variables, which is whacked to begin with but these are the 2 lp's I have to deal with....also found using the headphones that the mic aimed at the neck/front pickup area had the strongest audible signal for both guitars and strummed with the same pick and as much "english" put on the single pluck.
Several takes showed the same result...yah you can do a blind test but the new R9 smells so NEW...
I'm dating these and have new sets of strings to change to when I get the pigtail steel post for the R9. R7's posts are still the originals.
I'm waiting till I have at least 40 hours and more recordings to do a break down.
This maynot be the right category for this subject even tho it deals with Historics.