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First post on Rokslide, been following along for years. This is driving me crazy though. This is a 350 spine maxima red sd. It should weigh 9.4 grains per inch per their specs. It weighs 311.5 shaft and veins only. That is 10.7 grains per inch for a 29” arrow. Am I missing something? Assembled with a 100 grain broadhead arrow weight is 480.5. CE specs say it should be 9.4 gpi (29), 44 grain insert (more like 54), 9.9 grain knock ( 8.3 by my scale), 4.4 gr collar (4.1), 100 gr broadhead = 430.9. All help appreciated!! Thanks guys