When I first saw HPR it was a bunch of renegades, who I felt would cause problems. Of course it makes sense to allow 125 Grams of propellant in a single MR/HPR motor. Certainly HPR has been a good thing, and should continue. I also remember thinking, "Wow!, N and M motors, I'n surprised that our government lets us play with those, let alone O and P motors." I personally do not fly HPR, but that is simply because I have not had the need to, that is, no mission requirements that require the use of HPR motors. Of course if I lived in the great "wide open", and had money to burn, I'd be burning it in HPR and Amateur rocketry.
I've asked a couple times about the need other rocketeers have for HPR. I never get a technically satisfying answer. The answer I get is that the HPR rocketeers need is simply to assert their rights and freedoms. Of course I'm thinking, "Jeez, why don't they just write letters, or organize demonstration marches, or something." At one point after a HPR rocketeer discussed his other hobby, amateur astronomy in RMR, I tried to prime the pump and suggested that a need for HPR might be to loft a telescope/camera just above the fog or low cloud cover, so that he does not lose a needed sequence of observations. The HPR flyers not only rejected that as a use for HPR, but failed to offer any other need, or technical requirement for HPR. Nevertheless, HPR is a good thing, even if HPR flyers don't articulate a technical justification for it.
What concerns me more is that the HPR battle has changed the NAR and diverted resources and attention from the fundamental MR aspects. I particularly object to the recent NAR dues increase. I don't begrudge the money spent on the HPR battles. However, before they redouble those efforts, I'd like to see them win some battles for MR like easier, cheaper, shipping of MR motors, and perhaps even getting them back on passenger airlines as they were before ValueJet.
That just sounds wrong. While some HPR regulation may be appropriate, The BATFE is the wrong organization to do it.
Smoke 'em while ya got 'em.
Alan