When I'm on the field, I want max performance out of my paintball marker.  Part of this though depends on what type of hopper you're using.  If you've got a super fast Dye paintball marker, it would be ridiculous to load your paintballs with a simple gravity fed 200 round hopper.  That would be like putting average, low-end tires on a race car; you would find out soon enough the cheap tires are holding you back.  So with my paintball gun, I prefer the Halo B electronic hopper.  This is a great, fast and super reliable hopper.  I have had no problems at all with it so far.  It feeds the balls into my gun as fast as I can pull the trigger. All you have to do is put 6 AA batteries into it, hit the on button and you're ready to go.  It's very easy to open and reload and it never pops open on it's own.  I've used it throughout many rounds and competitions and have never had one problem.  This hopper is also by far one of the most durable loaders I have ever used; I will use it for a very long time.  If you're looking for a quick, reliable hopper, try the Halo B electronic hopper!
Mike Morton, Team Trinity