I live my JTV-89F but have always had a problem getting a true strat sound. When I hit full chords or played lead it seemed like everything on the GB and E strings didnt cut through. Well my friends I have finally found the fix that makes it ring and bite like a true strat.
step 1: Go into your workbench HD and at the bottom of the screen change the preset volume from 0 to 5 on each of the 5 position strat models.
step 2: Click on the strings tab
step 3: notice all the individual string volumes are set to 100
bridge , 2nd, and middle positions change the first three numbers to 60 so it will be 60 60 60 100 100 100
4th position it needs to be 50 60 60 100 100 100
neck position 40 60 60 100 100 100
AI dont know why they were set at all 100 like that from that factory but I have tried this on several amps at flat eq and your chords and leads now are full and match.