Having tried to make Sea Lion work in a way which doesn’t weaken Barbarossa too much, I don’t think it can be done.
If you don’t go Sealion G2, bombers in West Germany can be used to sink the Royal Navy in SZ76 and land in Italian Somaliland. This attack would greatly help Italy to dominate the Mediterenean Sea and threaten Egypt. It’s a good response to a UK1 all men London buy.
Sacrificing the bombers? Interesting idea. Of course, the RN can go beyond SZ76 and out of range of this attack and would if they want to reinforce the Pacific. Of course, going that far puts them out of range of the Med UK2. Normally wouldn’t they sit in SZ81 in the Red Sea so they can dent the CV and have it repaired immediately.
I find that a couple bombers can be a good build for G1. They can be used to bomb London on G2 if I am going to do a Sea Lion attack, or clean up the Med and Atlantic in most games. I rarely opt to do Sea Lion unless the German attacks on G1 proceeded flawlessly and the UK decides to minimally defend London.
You’re probably right. Some extra bombers really help with Barbarossa. This build does preclude a DD G1 though, which likely means you can’t occupy SZ112 and you’re probably giving up the BB, which most people do I guess.