Since you mention hating all papers...I just have to say...I use paper from Meijer. I have from the beginning and I don't think i have ever had a bad transfer. I tape it in place. Put my iron on the hottest setting and then just set it on the transfer for one minute. After that I go aro d in small circles for about 2-3 minutes. After that, I let it cool for about 10min and then get it wet. It peels off easier and doesn't remove any transfer then. Getting it wet is key for me.
None of this really applies to him since he is painting on his masks. I just wanted to chime in since I always read about people hating paper and I have never had a issue with this approach. It is almost effortless to get a good transfer like this.