Tsarter- Let us know how it works! Shuttle 9.2 is the best, I still have mine and won't give it up, either.
Edit: I was interrupted when I posted the above and was going to add the same caution that Andy did in his subsequent post - the Shuttle 10" is not up for tons of low frequencies at any kind of loud playing level, being driven by the 9.2 at four ohms.
A compressor would be a good idea and if you have a HPF pedal, break that out and set it to around 80. Of course, that will cut the lows to the much more capable Genzler cab. You might want to just play the gig with the Genzler cab and leave Junior at home, unless it's a lower volume gig.
You've had the Shuttle 3.0-10T combo for some time, so you are aware of its limitations. It's a nice little combo within those.