min/max fin size for my isonics question for ian fox

[erik]

Hi ian,

Can you tell me the min/max fin size for my isonic 105/135 2006?

what about the one foot off rule? I hear differend stories.
Is it -/+ 2 cm or -10 /+2 cm ?
Should i have stiff fins or more soft ones?
what fin range should you advise?

i sail 9.9/7.8/6.8/5.8 warps 2007
i way 90 kg.
i sail at big lake with lot of swell/chop

greetings from holland,

erik