I am not sure if the Sticky is working as intended.With a PoD being after the nazis assume power, make a non ASB operation Sealion happen and succeed. Bonus points for it happening in 1940.
I picked out the threads Sealion Interview and My Attempt on a Successful Sealion as examples of attempts at non ASB Sealions. Do the experts who have been here longer remember better attempts?
.....Of course it gets easier, if you start the divergence earlier. Ultimate Challenge: Unternehmen Seelöwe suggested that January 1940 is too late for a successful Sealion POD. I tried with a POD of 3rd September 1939 in Sealion Interview and didn't quite convince myself although it was fun. The basic idea was to use magnetic mines as a surprise weapon. Berra suggested a POD of the British not developing radar in My Attempt on a Successful Sealion but again did not convince everyone.
The irony of Operatio Sealion threads, is that the most plausiable of the lot is Reverse Sealion
Over at alternatehistory.com, titling a thread "A successful Sealion" is the surest way to become unpopular, as it´s about the tiredest, most thoroughly disproven point of departure on the whole board.
I often wonder - since the Germans could not obtain air superiority over the Channel, and the Royal Navy was ever-present and undefeatable in the same area and the Luftwaffe could not hit moving naval targets and the Dunkirk evacuation was a sucess.....why did the British pull out of France at all? I mean, why not establish and fortify a bridgehead around Dunkirk - like Tobruk? Since they had full control of the Channel supplying a bridgehead force should not be more difficult than evacuating their large, mostly intact, forces around Dunkirk. There was a lot of French forces to help them there, too. Instead of first evacuating and then land other British forces along the western part of the Channel.
The upkeep of such a bridgehead would need the Germans to eradicate it before they eventually could jump the Channel. Which would be a good defensive strategy. Not to mention the fact that it would have been a great help to the French. The decent thing to do, actually.