I have some reasons I was getting lower readings. My draw length is even shorter than I thought--I' m at 26 1/2" --the bottom of the range--but it WAS in stock!! On the string, there' s a string loop with a nock above it, a kisser button with a nock on either side, a peep site and the two included string leeches. If I removed some of these " additions" , shot lighter arrows and increased my weight (the weight is increased now), I figure I would be in the 260 range.