is it something I should worry about or is it over-rated? I shoot 3D for hunting practice only and only hunt deer and small game. both bows in my sig have 60# limbs,28.5" draw. I'm shooting 400 spine arrows. I can go as short as 27". I've got tight groups as it is w both 100 and 125gr heads w Blazer vanes.
also,is being over-spined an issue. I know under-spined will cause erratic arrow flight.