I'm 90 kgs plus 5mm suit and ride a 76L board sometimes. While I can knee start it in flat water, the easiest method in all conditions is to do the "stink-bug" start (search it in this forum) using the front strut handle and elbow on the board and climbing up from a sprawled position just before powering up the back hand. Much faster than the knee start and eliminates much of the instability you get from the kneeling position. BTW, we really need to get better names for techniques in what is already a pretty lamely-named sport (I mean, "stink-bug", "wing-dinging" etc? C'mon.
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