I agree with Blodg, I tuned bareshaft at 20 yards and called it good last year. That same bow whether untuned or not took a state title and finished #6 in the NW IBO triple crown last year. I went on to take an elk, a turkey, an antelope and a mule deer last year with the same bow. You can spend as much time as you want to tuning a bow. I choose to spend more time working on form. Terry Ragsdale set a world record and shot a 4 inch tear with his bow after setting it. As long as you do the same thing every time you will be right there every time. I agree also that shooting out to 30 40 and beyond while bare shafting is counterproductive. 20 yards is my max and I exclude any flyers that may happen with the bare shaft to allow for form flaws while doing this. After I am done, I can usually get the arrows to group about 1/2 inch at 20 yards. If you do your homework before hand you should not have to deal with spine issues when you get into shooting and set-up. There are some great programs out there to help you with this. Pinwheel software can be downloaded for 20.00 and can assist you with all your arrow selection questions. You can figure speed of your setup, different arrow choices,and so on. It will calculate foc ,grain weights and the works. The one thing that I have noticed in many years of archery is that alot of archers have different ways of tuning that they swear by. None of them are right or wrong. You need to choose what you beleive in and gives you confidence in your equipment. If you beleive in your equipment, you have a far better chance at making the shot when it comes down to crunch time. Try both methods and decide for yourself. All of these guys seem to have a good knowledge of archery and have taken the time to figure what works for them. Good luck and let us know what you come up with. I for one am interested.