I got a set of Yukon gear for my moose hunt last year. And i realize it is way over kill for colorado elk but i cant justify spending another 120-150 on lighter weight rain gear when what i have is bomb proof. Its only gonna save me like a pound. in my opinion if what you have has been working stick with it unless your going on a hunt that you know could be bad conditions.
Overkill isn't a bad thing! It will last and most certainly keep you dry wherever you decide to hunt. I love the Yukon gear, even though I don't always go to the harshest places all the time.