I know none of his videos have a deep ap in it, but he did state in his guide that it is viable and there was a deep ap build under his Recommended specs section. I am wanting to try something besides pyro, but then again I am not level 50 yet I am sitting at 33 currently. At lower levels I kept switching back and forth between pyro and AP because I kept getting frustrated not being able to stay in 4-10m range to any target who felt like kiting me, which in turn caused me to get rolled since I could not use most of my needed skils. I want to do a decent damage, but I do not want to be squishy. Main reason I am so focused on making ap work is this build is the entire reason I rolled PT. I am starting to realize unless certain skills are changed (some overhauled, some minor tweaks) then it will not be viable and I am going to have to learn how to survive better with the pyro. I am undergeared from lack of funds and I sometimes forget to weave rapid shots in causing me to over heat which is one reason i kept going back to ap at lower levels because it was easier to stay in target heat range.