Premiums, or if those are too expensive just something larger bore and round.
None seen yet.
Theres a lot of hype about this barrel, and to be honest it doesn't match up to it all. Yes, you can shoot a paintball nearly 300 ft., but that doesn't mean you'll be able to hit the target before it dodges or runs away. Yes, there are neat features like being able to curve the ball left or right or straight down from the sky, but it doesn't make your paintball into a homing missile. Those features take time and practice to master, and even then you could only use them under certain circumstances. I don't feel thats very practical, and I doubt I'll ever use them in a game.
Under normal gameplay this barrel is pretty darn good though. At 75 ft., I have ball-on-ball accuracy using setting 4. At 120 ft., I can hit a 2 foot by 2 foot target using setting 5. Know anybody that can make themself smaller than 2ft. x 2ft.?
If you've used the flatline barrels before, then you'll really appreciate this barrel. It's got about the same distance as the 98 flatline (something I really missed when I got my A5 flatline) but with much better accuracy.
The trajectory from this barrel is very level. So much so I'm able to use my stock sights.
As far as breaks go, I've only had 2. The first one I think was because it was really cold outside and I was raking the trigger. The second one was because I was shooting really cheap paint that was shaped like a football. On the first break I was able to keep shooting without there being much of a difference. On the second break my accuracy was crap anyways because of the cheap paint.
I'm very pleased with this barrel. A lot of the other reviews I've read on this barrel contain one time incidents when things went horribly wrong. Well I've been using this barrel for half a year, and I've yet to have a problem that was caused solely by the barrel. This is a strong, reliable product.