Looking for Sealion debunks

I know that there are a few good debunks of the plausibility of Sealion but for the life of me I can't seem to track them down. In particular I'm looking for one that went into great detail on the planned German invasion transports, logistics if they landed, and the state of the British defenses. I think it was on a war-gaming site. If anyone happens to have a link to any good ones, it would be greatly appreciated if you could post it. Thanks!