This is the same board 5'0" Jetty, My friend riding in this pic is a skimmer and loved this board, They bought one...
The boards are EPS / Epoxy and will ding, but are made strong. I wouldn't worry about heel dents anymore on these boards than you would on a Walker Project/ Shred Stixx and so on.
Sorry about not having alot of info out there but I am a new company and plan on getting my name out there this summer. There is a video on Wake9.com about long wakesurf wake, That is one of my boards. There is also some reviews of them on the Polar Bear Demo Event.