Hi Sam,
I chose the 2x10/1x15 combination for flexibility. With such a powerful head, the 2x10 (it has a horn as well) does the job quite well in smaller venues. When bi-amped with the 1x15, it's plenty screamin' loud and clear (or dirty when I want it to be). I'm not exactly playing stadiums, but I haven't been in a situation yet where I've had to turn it up past three at the absolute most - anything more than that and I'm drowning out the drummer and guitarist! I love it when the soundman tells me to turn it down!
Thanks to all for your warm welcomes. Oliver, would love to swap JE stories and tips with you sometime. Jazzy, you have MONEY in your pocket from GIGGING?? What's your secret??
Thanks to all, Mike