I couldn't figure how your guys were using the blow gun to remove the grip. My blow gun looked like this...
No matter how hard I pressed up against the butt end of the grip with the hole, air would ALWAYS escape. I went to Menards (Large Home Improvement store) and was looking for 3/16" needles. Same type of needles that you inflate basketballs, volleyballs, etc., but larger (3/16"), which is about the width of a tee. I couldn't find it, but found a kit, which included a Tapered Inflator Nozzle by Tool Shop at Menards ($18 USD), which looks like this..
It fit perfectly on the blowgun....
I had to force it a little, to get the first notch on there at the butt end of the grip. After some quick presses of the blow gun, air started going through the grip. I was afraid at first when a large bubble formed at the middle of the grip, but all I had to do was just grip that area with my hand and gave a few more presses of the blow gun. Eventually, the air spread throughout the grip and I was able to remove it. The grip didn't come out as easily as some of those videos I've seen. It took some effort, but is possible. And
without exploding the grip and having rubber projectiles all over the place. Inserting the grip also took some effort, but not much. I was able to align it as well.
I still plan to use grip tape. I like the extra width the tape adds. But at least now, I can interchange grips allot easier and faster. Too bad, I already order the Grip Mate. I guess that will go immediately to Ebay.