Typhoon I noticed 2 guys, Champ and Lovelady , who hit the ball a mile as well use the Ping G400max but add 5 grams of weight near the face to lower spin.
Tony Finau uses a Ping G400 Max also I believe.
I've sent Cobra heads back to Cobra to get hot melted in the past. Cobras had a port on the bottom of the head. I remember calling around the Tampa area asking club repair guys if they did hot melt. One guy used to have one, but didn't get enough requests for it. The hot melt gun is expensive I was told.
Anyway, I'd call Ping and ask if they could add some hot melt near the face for you. I don't see a port, but obviously they have a way of getting it in there.