I think your board is the IS97 , you will be able to cover an range of wind from 16 to maybe 30-35 knots
If you choose the isonic 97 you can us a 36 cm fin for the 7.0 and 7.6 you might use a 38 if there is not enough wind and you can use a 34 for the 6.2.
You should make a decision between the 107 and the 97 i dont think the 110 fit your sail size/weight
i hope this helps
Surf Location: Alacati,Turkey
IS2012 90,107,127-REFLEX III 9.6/8.6/7.8/7.0/6.2