Let me open the case for removing the subskill endurance. Ans replacing it with something more valuable.
Why? Because nobody ever uses it anymore, and because its a waste of skillpoints. If you need stamina, there's cheap and recyclable stamina boosters, and skillpoints are better spent in athletics and resists.
Instead of endurance i propose the skill mobility (by any name), which will act as a resist against para/freeze. You all have read Alduins answer on Freezers (and Para): glue will return in balancing phase 2. The new skill "mobility" would just be the right thing to counter that.
Whats your opinion on this?