Only used a little bit of old Zap Chronic...mainly used Big Ball
Extremely lightweight, looks good, extremely accurate
None that I can think of.
This is definitely a good buy. Instead of spending almost 200 for a freak kit, you get a great deal buying a Matchstik set. I'm not sure how hard they are to find anymore, I just happen to stumble across a brand new set of them for $100. It comes with three different backs and a 12 and 14 inch front. The inside of the fronts and the backs are highly polished with no defects.
I've only played one day with this set, but can already tell a remarkable difference in my accuracy. I was placing my rounds more accurately and more consistently. I also noticed that my range was a little bit farther when using this barrel kit.