Everybody has to warm up, and the more you start to lift close to the maximum of your potential, the more important it will be. The reason people say not to warm up for bulking is because they think it will use up the stored glycogen in the muscles, but that's nonsense. 5-10 minutes of walking or running won't do that. Only long duration cardio will start to even get close to depleting glycogen.
So yes, warm up however you wish.