I am happy to share - no secrets here. Just don't ask for my CAD or CNC files.....
To start with, I always wear vinyl gloves when working with Super Glue. I learned that lesson the hard way. Secondly, I attach a small block on the back of the grips with double sided tape. That way I can hang on to it without actually holding the grip. Application is pretty easy - just squeeze a few lines of glue on it then wipe it on/even it out with the edge of a piece of paper. I've found that Post It notes work well. And yes, you have to work fast, otherwise you'll be sanding pieces of glued paper off. Follow that with some 220 grit sandpaper to knock down the high spots, then do it again. This is a great way to fill in grainy wood. Please do this in a well ventilated area. The fumes from this much glue can burn your sinuses. That's another lesson I learned the hard way.....