I have one of these ace little 110 combos and I use it with a Barefaced Midget (112) extension cab. I am finding that if I need a bit more of a volume push for bigger gigs, the 10" driver in the combo seems to be running out of steam. I have found the spec on the original driver and the Xmax is only 2mm whereas the Xmax on the 12" driver in the Midget is 6.2mm. I am considering trying a better 10" driver in the Promethean combo but I have never used WinISD so I'm in the dark when it comes to choosing a suitable replacement. One I've been looking at is the FaitalPro 10PR300 which has a good spec on paper. Has anyone upgraded their Promethean 110 combo driver...?