Hello,
I just wanted to share an experience I have made with the above mentioned combination:
After adding the pad, a few days later the shown effect arised. It's like something of the moongel has switched over to the surface of the drumhead.
I have contacted both Remo and RTOM and it seems that this combination remains a special residue (oil? colour?) on the surface of the drumhead, which is almost impossible to remove afterwards.
As I could learn from the comments of both companies, it's nothing that the drumhead destroys - but just a bad optical shape.
Although the sound results were really great before, I have taken the Moongel pad off again.
Just my experience.
Ralf