Just to add a few cents to the thread (as opposed to any actual sense) I converted to head + cab, but didn't dig the combo shell as speaker cab thing at all. I know I could have filled the holes, but I mothballed it because my goal was to get smaller, weight-wise for sure but also as much volume-wise (in terms of displacement, not loudness) as I could. So I've been working my way through some speaker cabs since then. I really like the Lone Star 1x12 widebody, which is the same width and depth as the combo but shorter by a few inches. Sounds great. I also have a Freda 1x12s and I have a Forte 3D112 on the way. I'm not sure which of the others will survive when I get the Forte, maybe all... but 3 1x12's might be overkill. :roll:
However, speaker-wise I've gone to the dark side, plan-x. I was happy with the C90 for a long time, but lately I've been branching out and I don't know if I'll go back.
Anyway, I've done some experimenting. I had a 50w Blue Dog Ceramic in my LSC for a while -- nice speaker, but with the LSC there was a high-mid spike that was a little too much for me, and the OD tones were pretty rough. I put it in my Fender DR and now it seems a little happier. Webers are so efficient that they can be harsh under the wrong circumstances. A higher wattage version of the speaker might have mitigated some of this. I have some demo recordings of this combo on my band's site (http://www.curtisbumpy.com). The studio tracks are with the Blue Dog.
Anyway, more recently I've really been digging WGS speakers. I have a Reaper HP in my Freda 1x12s, and just recently I put a Blackhawk in my LS 1x12 widebody cab. The Blackhawk will probably end up in the Forte when I get it. The Reaper is a high-powered take on a G12H30, and I really like it a lot. It has a lot of punch but a pretty even response, and no real spikes anywhere. It's pretty smooth overall. The Blackhawk is my first AlNiCo speaker, and what can I say? I LOVE it so far, it's definitely a keeper. I think it's a great match with the LSC.
And here's a tip: a good number of the sample clips on the WGS site use a Lone Star Classic.
I highly recommend speaker experimentation.