Duncan, I’m shooting off the shelf. The arrows I’ve had prior to this batch were built from shafts over 20 yrs old…I spent quite awhile away from archery…when I got going again, I built those from supplies I’d been carting around for a couple decades. Those arrows were bought from 3 rivers but I don’t know what spine weight they were. They did shoot fine however. After I used those up, I ordered the current batch from Rose City. So I guess I’ll have to do some comparison shooting with other weights. Don’t know of a club locally, but will nose around and see if I can find one.
BTW, I considered getting some tapered shafts from Wapiti Archery down in OR. But I already had these ordered when I found Wapiti. Thanks for the input.