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I have the same issue. Also emailed him with no response. Hope they are just updating the server or something.I have been trying to get onto Pinwheels software for the past few days, and the website is down with a 503 error.
I emailed Larry, and have not heard any response back from him.
Is pinwheel still in business?
Personal preference. You will always be "underspined" with the online programs. My thoughts and experience over the years, according to the online calculators, I've always shot "underspined" arrows. I have yet to ever personally have, or anyone that I have helped, trace a tuning issue back to underspined arrows. IMO it is the most overrated, overblamed thing in archery.@jmez Just because I'm dense, is it a known issue that Pinwheel's spine recommendations are always underspined? And I should not rely on them? Or at least always be a certain amount over the recommended spine?
Just to clarify, you mean overspined? In other words a ton of tuning issues can be traced back to underspined arrows, and overspining is extremely rare?I have yet to ever personally have, or anyone that I have helped, trace a tuning issue back to underspined arrows. IMO it is the most overrated, overblamed thing in archery.