It's been said before, but I think it bears repeating. Blasters become too powerful when everyone stops having fun and nerf wars turn into ridiculous standoffs. I haven't been too active on the war front since early summer, but even at that point we were beginning to run into the "people taking potshots at 90 feet" kind of gameplay.
Since then things on NH definitely have a sort of vibe of an "arms race"as you put it.
The biggest problem I had was people using stefens and high powered blasters in a zombie round. Its bad enough when you have someone shooting you from 90ft when you have a 70ft weapon, but unless im going to smack you with my penis even a doubleshot has enough range for a zombie round.
Im all for the standoffs, anyone who nerfs with me will know that no matter what kind of position you find, eventually Im going to tag you from some cheap angle or lucky shot and take your campsite while you are counting. Having one or two really kick ass blasters on the field is always a challenge to me, I always try to build for midrage and high rof but Ive built about every variation you can imagine for testing and fun.
I think limiting stefens to 2 bbs or even 1 or CS style darts all 1.5in or more would go a long way to shutting down the really powerful blasters. Im all for more stock dart rounds and I would like to see missiles, rockets and ballistic balls on the field.