I can’t remember but I don’t think 3 Rivers weight matches their shafts. Some of the arrow companies weight match their shafts to within 5-10 grains.
Assume you're talking wood shafts and agree larger places like 3 Rivers (as well as most trad suppliers) don't weight match shafts. A couple of the better wood shaft suppliers have been mentioned above and I'd add Ted Fry of Raptor Archery for top quality wood shafts.
I've gotten so anal about good wood shafting, I actually started making my own a number of years back. Best wood shafts I've ever used, but way to much work and good/consistent materials are near impossible to get.
