I'm not really skilled at getting the bottle out of the cage and back in again. It takes concentration, I slow down, I even have to stop altogether many times. I also have to carry a bit more extra gear than most folks (emergency change of ostomy appliance -- just in case). So I always wear a Camelbak, one with just enough storage space and plenty of water. I put only water in the c'bak, then two bottles with sports drink on the frame. I sip constantly from the c'bak and drink from the bottles at every stop sign or other brief stop, then refill both bottles and c'bak at the rest stops as needed. I haven't done a 150, but I imagine I would do the same regardless of distance. That said ... my reasons need not apply to you. As folks have said already -- if you're fine with bottles, then you probably don't need the extra weight and warmth.