I kind of have the same issue as Markus as I have some mellow blues (Stereo Matches) patches I like to use as well as the heavy stuff. Finding one cab for all may be an issue. Plus, the ability to have multiple complete rigs on tap is the bonus of going with a rack unit. That said, the Epsi adds such character and depth it's worth it to pick an all around cab and stick with it.

I like the idea of picking 3 favs and setting them at 100,101,102. You can pull them up super fast and hit the load button without any big issue but, doing it during a song would be tricky. But if you only loaded the 3 cabs on the card it would be fairly idiot proof.

I'm all for helping design a system to reference patches and IR's in some kind of universal format. Should be easy enough.

Now I just need to find the perfect IR to use with Singtalls King's X patch!