I haven’t don’t it on those heads, but I used a heat gun to do it on a similar medalian, patients is the key and be prepared to have to touch up the cavity afterwords if you get excited and try to scrape anything. Heat it up, let it sit a few seconds, repeat, repeat, repeat, kind of like trying to pull a shaft while saving a ferrule. I would assume these ones will start to lift at the edge on their own, but you may have to get under it to get it going.
I found there is a nice rust-o-leum, sparkle/glitter paint in gray that matched a lot of club cavities well, the last set of Maltby MTFs I had got hit with it in the cavities, I thought it looked better than stock.
Good luck!