I have done many CA glue repairs. Here are a few tips to share. Most have already been stated.
1 - ALWAYS, ALWAYS, ALWAYS, remove the action. Uprights or grands.
2 - I like to use the parchment paper cooks use on baking sheets to cover the key bed. It is cheap, stronger than newspaper and easily taped down with blue painters tape. Also, most glues will not stick to it so it can be reused. I keep some in my glue kit.
3 - I like to do three passes as well, but with a little twist. I like to do about 40-50 pins at a time. If using the quick cure glue I have found it can set up before you get back and apply more glue. Cured glue will not allow more glue to penetrate down the pin. Do the same 40-50 three times then move to the next set.
4 - I totally agree the bulb style applicators available do not work well. I take a trip to the pharmacy and get a handful of syringes. They may ask you why you want them but I have yet to have a problem when I say it is for applying thin glue on projects at work. Generally a 20 gauge about 1.5 inches long. They are cheap, about 40 cents each, and allow you precisely apply the glue around the pin bushing. Another nice thing about them is you can lay them down and not worry about the glue coming out. With a little practice it is easy to control the plunger when applying the glue. Always depress the plunger and then draw the the glue in having as little head of air as possible. This prevents the glue from starting to cure. Simply refill with more glue when needed.
5 - I know it is a lot more work to tilt sn upright piano but I prefer doing it so I know the glue is at least pooling around the pin where it enters the pin block instead of running down the gap between the pin block and the plate.
6 - I like using the super thin glue from BSI or Mercury. (I will be trying the other glue from BSI that has been recommended on this thread). I prefer the Mercury as it has less smell. That being said safety is vital. Wear safety equipment and use a small 6-8 inch fan blowing across the work area to keep the fumes out of your face. Note: The moving air does not change the cure time. Always do it with the best ventilation possible.