Hi there, that sounds about right, you are really light so best to go with the 106 instead of the 115. The 7.0 will work well with the 97, although the best size for that board is probably 6.3 (106 works great with 7.0/7.7..and also 6.3). So if you are going to be out in 30 knots, I'd really recommend a 6.3 too for your weight (or maybe you have one already?) good luck!