to calculate your din......
start by going finding your height/weight in the first column. if not on the same line go with the higher one.
now....
go down 1 skier code for a Type II skier
go down 2 skier codes for a Type III skier (no such thing as III+... go higher at your own risk)
go down 1 skier code if you are under 10 years old or over 50 years old
then look on the heel of your boot and find your boot sole length.
find your skier code row and boot sole length column and then there is your din....
but you should really have a shop torque out your system to make sure everything works properly.