I only played a couple of skins games as I play more on the mobile platform where this is not available. I do however like the format but can hardly ever find a game as barely anyone plays it. Why? I believe because the value for the game is off. The fee to play a 9 hole round is 30 credits on top of your variable skins per hole. So if you want a friendly skins game at 10 credits a hole and add the 30 credits game fee, you need to win at least 6 skins just to break even,- which really does not make real sense.
So how about you adjust the fees based on the value of the skins, say take a fee of the value of one hole? This would make playing skin games much more attractive and would generate you more revenue in return. So far everyone plays matches and alternate shot games which are completely free, so I think you miss out on an opportunity here ...
Maybe worth considering ...