I've always oriented my Weavers to the left. Less junk in the way of feeding and ejecting. So, the Ruger rings don't bother me in the least.
Yep, same here. I agree with you and gunzo... I just see it as unnecessary chit in the way and a good way to jam a finger, cut yourself or rip off a fingernail if it's on something like a semi auto. When I had weavers on my Winchester model 100, they were on the opposite side of the loading ejection port. The same goes for when I use them on my bolt actions...
I orient those types opposite of the ejection port as well. My main objective is to have all the room there is for loading. A cleaner ejection pathway is nice also.