What are the collective thoughts on the DRRI vs the newer 12” PRRI? I have the Sweetwater tweed version of the 12” Princeton Reverb. I yanked out the C Rex and installed a GA SC64 speaker. What is to be gained by going to the DR with that speaker or a Vintage 30? Thinking snap/twang country and some classic rock. Besides the obvious and nominal difference in wattage, what characteristic set them apart? Thanks.