Can't find the suspa C16-22241 30 lb struts on amazon and I don't want to pay big bucks for them, several sources on amazon for the C16-15952 40 lb. FWC chart lists 40 front and 30 rear for my hawk with 1 solar panel, so question is; is there an issue getting the roof down if I use 40 lb front and rear. Sometimes there will be 1 or 2 surfboards on the racks also.