had moongels for a couple of years. they eventually started to disintegrate so i tried these as a replacement.
i like the variety in sizes, this is useful.
they do their job well toning down ringing overtones.
however after my first use of them, i was unhappy to see that they left a green stain on my coated heads. now bear in mind, this same thing happened with the moongels, but not as bad as with these.
yes, this product leaves behind a greasy stain which is easy to see in green. with the clear version, maybe you will not notice and end up tracking greasy stains all over your cymbals and hardware too.
i assume it is just the type of gel, they feel more or less the same as the moongels. this kind of product without this flaw would be great.