Ready to install windshields, any suggestions

Yes to the 3M glazing compound, that is a butyl compound and works very well. It has a good long working time. I put a hole the size of a pin head on the end of the tube to open it and we put a tiny bead inside the window side of the gasket all the way around. We did both front and rear at the same time. We then opened the tube up a little more and did the same thing on the car side of the gasket. WE installed the gasket on the car and then the window in the gasket. We used the plastic bar shaped tools the window guys use. WE then installed the lock strips.
Andrew