Along with Mr. Knauff's experience, we should note that the Tost release installation is included in Chapter 8 of the FAA Advisory Circular AC 13.2B for standard repair and maintenance. With the AC in hand, I can't see why the FAA would give anyone any grief over installing it using standard practices.

The same chapter also shows inverted Schweizer hooks - which should be mandatory based on what I've learned in this thread.

Paul A.