Finally did some actual testing on the threshold. I wanted to see what setting gives the best separation of speeds. I like normal speed the best for this. I re-rated some receivers with the same ratings including 99 acc but, used 99, 95, 90, 85, 80, and 75 speed. I ran plays in practice mode were they lined up next to each other running streaks. 0 threshold was the only setting to get the speed differences right.
I was concerned that using 0 would hurt the game play but, in the one game I played so far it only made game play better. Plus I only had one sack.
I really should quit tweaking but, it's like a drug. Lol
I think 0 threshold is the way to go IMO