Have tried Magpul, Harris and quite a few others. I like the Magpul fine for target shooting and the like, and I like that it has tilt and a bit of swivel. For hunting I don't like any of them. I hate the unbalanced feel of the gun with a Bi=pod mounted and most places I hunt you need to at least be kneeling and often standing to be able to get above the vegetation to shoot. A Primos Trigger stick Bi-pod or something similar, are what I always use for hunting.
These Bungee corded ones are great for spot and stalk hunting. Carry them on your belt, never in the way, leaves both hands free.