I just bought a Switchback and had the 30" cam installed. It feels like the draw length has increased since I first brought it home. I probably have 100 shots through it. I know strings stretch but how much would the stretching add to the draw length during the break in period? I went from 29.5" in my old bow to 30" with the new SB and getting a little worried I might have overdone it. Hope when I take it back to the shop to put more twists in after the break in I will be OK. Thanks.