Have gotten a lot of questions about 79 Speed & 71 Endurance. Here's what we know about the attribute-based unintuitive quirks from 16:
Speed boost if your QB's Arm > 89 and QB's Accuracy > 89? Gone
Speed penalty if < 75 Agility? Gone
79 speed boosts for QB/DE? Gone.
Tiered speed boosts for RBs/FBs? Gone, although there is one unintuitive quirk where RBs/FBs get a 3% current speed penalty after the catch for having >85 speed. Doesn't apply to before the catch or rushing
Big back speed boost? Still there but unachievable.
71 Endurance? Still there and works in the same way as 16
Speed boost if your QB's Arm > 89 and QB's Accuracy > 89? Gone
Speed penalty if < 75 Agility? Gone
79 speed boosts for QB/DE? Gone.
Tiered speed boosts for RBs/FBs? Gone, although there is one unintuitive quirk where RBs/FBs get a 3% current speed penalty after the catch for having >85 speed. Doesn't apply to before the catch or rushing
Big back speed boost? Still there but unachievable.
71 Endurance? Still there and works in the same way as 16