Based on my experience (which is exactly like yours assuming you're me) the Heresy IIIs unapologetically do provide a high end experience that is as good as the gear driving 'em. Coherent and detailed. However, having just read an interview with Alon Wolf, I'm inclined more toward the "no port" (except in a storm of course) design of my Heresy IIIs...this is convenient as that's what I own, but some of his points were interesting relative to why Magicos are portless. Level goes up allowing bass to become unruly and lumpy, port noise, mouse and rodent entry points, possible buoyancy issues when in flooded conditions, last minute hiding places for contraband during police raids. It's also interesting that Heresies are relatively unique...small floor tilted fat boxes which really do take up less visual space...a good thing...I can see over them. I will audition the IVs eventually and likely recant most of this post, but for now I'm with Alon.