Yes I have considered modifying the cabinets, or buying new ones. But now I am leaning towards liquidation since I got a BF Princeton. I have heard that the glued baffle provides support for the pressboard frame (yuck
. I already had a long crack put in the frame of my PR after allowing the other guitarist to load it up after a gig, and I think it was just hitting it with a heavy iron mike stand in packing (not a big drop).
My SF Princetons can all accomodate JBL D120's/E120's even Im pretty sure, just a little tight getting it in. Pulling the chassis is one trick, but I havent had to do that. The SF Princeton baffle has been opened up to 12" by previous owner, I have a D123 in there now. I aint crazy about that amp alone but it sounds good when paired with my '57 Tweed Princeton. The tweed's cabinet is really resonant, of course the circuit helps that I guess lol.