My copy of that same report does not jive with the above with regard to loose/floating tenons ...
3?8-IN. MORTISE & TENON 1,444 lb. 3?8-IN. FLOATING M&T 1,396 lb. 3?8-IN. WEDGED M&T 1,210 lb. 3?8-IN. PINNED M&T 1,162 lb.Traditional mortise and tenons were ranked 4th in the overall strength test, being about 3.5% stronger than loose/floating tenons of equal thickness, which came in 5th.