I noticed when i put weight in my tether that my gate won't open on my carabiner. when i take my weight off the tether, the gate opens. This makes me feel like there is slight flex happening in my carabiner. i could be wrong, but now it's in the back of my mind. So, i'm ready to upgrade. I don't want to say i'm on a budget, because my life isn't worth a few bucks, but i also don't need the most expensive either. what are some of the most generally accepted and most used carabiners out there? thanks for any help.