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If you are worried about them being too short buy some longer ones. On your first trip out you can measure them and cut them to length. Once you cut the straps heat the ends with a lighter to prevent them from fraying. Should be good to go then.
I use 6' cam straps.
Thanks for the heads up NYSporty.....winds like that would surely test the limits of both you and your equipment!! Not to hijack thread, did you come up with a remedy to fix that problem?