I’ve had a chance to use it a couple times. I’m running between 1 and 2 for speed. It’s great for the bigger items but you have to have the discipline to keep moving. Because if you let go of the trigger it backs up the pusher 1/8 inch and at the low speeds it takes a bit to start pushing silicone again. I still throw the tube into my mechanical gun for jobs that needs a spot or two such as valve covers or front covers that have gaskets.