:idea: Using a Klon in front of a Mesa Lonestar really punches out the Stormy's, but what I get is a lot more breadth and bite from them via channel 1. Really cuts through the mix without getting gritty/harsh, very ABB. Run via channel 2 and it gets nice and dark, without going mushy, like BS (Tony Iommi not Zak Wylde). Tried through a powerscreamer they are a different animal, with the tone rolled up on the guitar and the treble rolled up on the amp otherwise they can become a bit mushy. The powerscreamer works much better with the Mules, doesn't lose the breadth and become too harsh with plenty of harmonics. The Klon works as well with the Mules as is does the Stormys.
If this is of any help the Stormys are in a 57 and the Mules in a 58, but I did discover a dramatic release of breadth and tone when I stuck some Evidence in between.
Also an oldie. 8)
If this helps, Stormys are Alnico 2's covered, calibrated, potted and Mules are Alnico 4's covered, calibrated and potted.
It works for me but you've gotta be pushing thoses tubes hard.