Pantocrator
[10] Knight
Not the most important thing, but from practice. When you JG Pat 66aBE, 3B will whiff. I haven't tried 1B against it, but 3A hits consistently. Pretty lame punish though but it's meterless damage.
1B works. For 3B you have to delay it. But you can also go for iWSB or 33B.
About step it's possible (Siegfried is very good to step during string). But it's more difficult than a JG since it's slower (so you have to react faster).
But after don't forget to test that 22BB4 won't whiff too :-D