I believe, (IMO here), that we should just look the other way.
You love to generalize Tieguy, not everyone hustling is unsafe but about 50% are. The ones that do work safely, do not work 150% or 200% capacity but closer to 120%.
thats a pretty high number you're throwing out there.
I believe that those who do not pull their weight should be documented, and terminated, period. I believe the steward shuold not side with the teamster in those cases. The steward should give ample warning that UPS is going to discipline them and give them that ultimatum.
There is no language in the contract that enforces anything like this, so it's all heresay, but overall there is no way for either side to enforce anything performance-related unless (1) its in the contract and (2) both a manager and steward both document it, give warnings, and eventually terminate.
As far as telling others to slow down, or hurry up, why should we? The first thing I was taught at UPS by a manager is "WAD and keep your mouth shut". I don't remember the situation but I do remember that I had made a few comments or comment that didn't go over well.
What good is it to pull another teamster aside and say "you're too slow, work harder." Give me a break Tieguy, that's a solution?