I love my BP's. As mentioned previously you don't have to monkey with tools to change either pick or head. For me I have had such good luck with my BP's, X-15's and even my old Chouninard Zero X that it is hard to consider something else. When I looked at the Shrike for a new third tool, it was the grip that made me say no. Having clench my BP's for hours on end while wearing heavy gloves on cold weather climbs, the ergo shaft makes a big differance to me.
If you have not yet purchased, I suggest you take a look at the "The Fly" by DMM. Good price, nice swing, comfortable on the wrist and a smartly designed spike. If I wasn't such a Chouinard/Black Diamond fan, that's where I would probably put my money.