My tall footplates like extra support. My plates are no longer adjustable, but the blocking is easily removable. I made no changes to the Epic rails, pins or little rubber feet.
I need support up high behind the balls of my feet (above the pivot point on the rails). I also fit a chunk down low, to add strength to the footboard behind my heels. (I've lost a rubber foot and cracked gelcoat).
I like the adjustable Epic system. It's easy to set the length. Once I have it, I lock it in solid. I tie off my strings too, they never need adjustment. And I beef up the strap so it's comfy, tight and easy to use.
I get scraps of divinicell from a boat maker. I fit the parts very carefully. I slide the footplate fore and aft - using the rails, pins and rubber feet as a reference for a factory footboard angle. Then a dab of Sikaflex sealer to hold it all together.
If I ever need to take it apart, I'll cut the divinicell out. I have 1mil. plumbers's tape on the gelcoat to help protect it from the adhesive. It's a very good fit without any high pressure points. This method has been solid for years on several boats. I'm a huge fan of a rock solid footplate.
Standard Epic straps, slightly modified. (I removed the thin Epic cushion and some of their velcro). I fit one big piece of foam that goes tight to the footboard. It wraps nicely around the top of my foot and doesn't sag.
Here's some cracked gelcoat under a footplate rubber foot. I tried to reinforce that area with some high performance SUP rail tape, (rail saver pro). I probably lost a rubber foot and replaced it after the run. Tape kept it dry until I fixed the foot. But when I tried to remove it years later, the gelcoat had been cracked and the tape ripped out a chunk. High pressure point damage. I have a pro fix stuff like that with paint that can withstand acetone.