Good morning! I currently have a 4104 with KT88s and V30s. I hate the V30’s in the combo’s open back style so I have it running through a closed back Orange cab with V30s. I love that sound but I’d like to swap out the the current V30s in the combo for something that’ll tighten up the sound and I was thinking of switching to G12-65s. Does anyone have any experience with these speakers in the 4104 format?