Squirting isn't all that crazy to me....it doesn't mean they're cumming that hard at all, just that you hitting the spot that releases the squirt. You can do it with one finger...anyone can do it once they figure it out, get the chick comfortable, and give her enough time to do it.
Creaming is the real sign you hitting it right. If your girl's not creaming, you're doing something wrong. My girl went from never creaming w/ any dude before me, to doing it basically all of the time now. Leaving it all up on my thighs, lower stomach, all up on the bed, her legs shaking. Still wet 2-3 hours after doing it. I feel like that's the truest sign a chick is cumming hard and enjoying it. Squirting is more just emptying the bladder w/ whatever juices are there, while creaming is like real cum.