Laser Storage on hull straps, why Bad idea?

Hi all, recently got a nice second hand Laser and previously used 2 wide brackets with wide webbing straps to support a sunfish on her hull in two places, aft of midship and just aft of bow. It seems that from all that I have read it is advisable to store a laser on support posts under the side rails. I don’t have enough width in my storage location to keep her on the slip trolley (with the supports). What I haven’t found is what terrible things will happen by using the existing slings? Will...

Laser Storage on hull straps, why Bad idea?