Just recently I've been talking about bits with a friend of mine. She insists that anything with a lot of gag is a better lifter bit, than something without.
Now, I've been operating under the knowledge that something with little gag and more purchase is going to "lift" better.
So I just figured I'd ask the barrel racers on here. I'd hate to be totally wrong. It's worked for me but hey, I can always be misinformed. I assumed bits with a lot of gag encouraged more dropping of the head.