we have just spent a bit of time down an port fairy with up to 60KM gusts. Apart from a lot of F%^%$ moments with the awning an annexe. the bed end flys went on relatively easily. I have added elastic through the base of the bed end fly by threading through a channel that was part of the edging and just added some eylets for the thread to come through. Kept the bed ends from flapping really really badly - now in 60kms winds the just flap really badly - but your never going to stop that!