I, too have landed in Scotland turn 2.
Removing all UK ships from play I like better than just hitting 1 sz, as it removes options for him. The fewer options he has, the better. With 6 planes on sz110, he would do better to not scramble.
And if he does scramble, barring luck, you will win, and he loses 3 planes for your 1-2. I like this, too, as it also removes more possibilites for him, and Seaion just became more viable.
All that being said, I repeat that with alpha 2, Sealion can be stopped cold. I still use this opening, as it still kills the UK fleet, and UK MUST respond properly, making UK moves predictable.