They are basicly used to seal the hull
joint. As well, they work as a topside backing plate to strengthen the hold for the fasteners so they donít get pulled thru the fiberglass
I'm not familiar with Cascades, so I don't know the construction, but if it had toe rails before you should probably replace them.
Mine has a toe rail/T-track combination that I can't find anymore. So I'll be glassing over the joint and then just replacing the T-track. I'm even considering putting in an upper deck
stringer/cover board of mahogany, then putting the T-track on that.
How it your deck to hull
joint configured? Does the deck wrap over the hull, come together in a lip or is the deck sitting on top of the hull lip.