I have a full quiver of black projects now, took a new one out last week and managed to hit a sunken boat at 25knots. The fin took about 3 minutes to sand back to normal...by hand!!!! It took longer get it out of the box, which fortunately was deep tuttle so the fin did very little damage to the box, small chip at the back. I know if I had hit that boat with a select it would no longer exist having hit a sandy bottom with an old select and had to repair it and then seal it with epoxy to stop it feathering up at the tip.
If you can get one over there get a black project, they will also come in handy come the revolution for swords and with withstand a nuclear bomb at close proximity