Some time back a joostin posted some mods and a schematic that also included some mods by BOBW on a Music Man RD50. One of  joostin's mods was to insert  a PAB switch between the bass and treble pots. I have been told it's possible to replace R8 with a 25k pot to create variable PAB. My question is can the "PAB pot" be placed where joostin has put the switch. And what would the difference be? Attached is the link to the modified schematic. I would appreciate your inputs!
https://tubeamparchive.com/download/file.php?id=2201
			
			
									
									
						PAB switch/pot for Music Man RD50?
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