Originally Posted by at_wanderer
... It looks like the collar would hold better in an emergency situation.
Yes. Yes it will.
Having used similar couplers before, I agree that it is a superior coupler to what most travel trailers have. But, it requires more maintenance, in the order of periodic greasing, to keep it carefree. Even then it's release function can get balky.
Keep in mind that, with weight distribution bars installed, the coupler popping off the ball is extremely rare ... if not a non-existent situation.
Definitely go for that style of coupler if you tow without weight distribution.