Is there a big difference in the way Goldtip pro series 22 shoot and Goltip ultrlight 22 (non pro) series shoot? I was told that if you cut both ends of the raw shaft to the desired arrow length needed, you can correct the straightness of the standard series to be as straight as the pro series. Any truth to that? Is spending the extra money on the pro series worth it? Any inputs would be greatly appreciated.