I am looking into buying a Portaflex 410 to match my PF 500 head. The head is great, but I'm feeling the desire for some more punch and response in the cab. I'm not very well attuned to cabinet knowledge, but I assume the smaller drivers are more responsive and crisper (not sure if that's the right word to describe it). I currently run my PF 500 into an SVT 115HEN and it's decent, but I want some more headroom (the cab is rated at 200 watts, It does handle the 300 watts of the PF 500 fairly well, partially because I know I can't crank the volume/gain). Is the 1x15"/200 watt RMS holding back the PF 500? For half the price of the PF410, I can get another SVT 115HEN and double up the 15's, but will they still seem pushed hard by the 500 watt load into the 400 watts of cabinetry? If I get the PF410, I wouldn't be able to run a 4 ohm load, as I wouldn't want to deal with phasing issues using the svt with the PF. Does anyone have experience with both cabs (or at least the Portaflex 410) who can give me their thoughts on the two?