recently hooked up with a PF500/PF115HE. Sounds good, works well on a gig. Interested in possibly adding another of the PF cabs for the few gigs I do that call for that kind of volume. Choices would be: another PF115HE - to have matching cabs/specs add a PF115LF - to add a bit more low end I suppose I could also consider adding a PF210HE, but then I would be in the dreaded 15+210 mismatched cabs wasteland . anyone using 2 PF115HE's and/or a mixed HE+LF stack with their PF500 ? inquiring minds want to know.