Has anyone become proficient with a gel coat dump gun? Or is it just pull the trigger and spit it out? I just did my transom, and went through a pint in about 1 minute. Holy Moly! That thing lays it on thick! However, even when I tipped it up after each pass, gel coat would spatter out once I pulled the trigger again. NO matter what combo of air and fluid settings, it made a mess. I even got some on my wife, and she was behind me watching! LOL! I hate sanding.