Hi Holka,
Your ratio’s, imho, certainly are not offensive. I won’t post them here as they are your personal stats, but I bet most affiliate would be pleased with them. Unless you’re used to a 80%+ ratio for download to new players.
Re: banned states & registrations: surfers from a banned state should not be able to download the software or register. If they do find a way around the download, they are still unable to register if their personal details reflect a banned region/state.
All that said, any and all input regarding improving conversions is always welcome… thoughts/comments?