Fin size Isonic 133/135 (model 2006/2009)

[Jan W]

I have an Isonic 135l model 2006 and I am satisfied with the behavior. Still I like to know why in the new models the vin range is changed and for what reason.The model 2006 has 2 vins: 38 en 44 cm and the model 2009 52cm. The sail size is almost the same:Model 2006 6.5-10 and 2009: 6.5-10.5.