If you do, please come up with something that would allow to stand ground while blocking high, unless you specifically want defensive behaviour to create space
There's also down vs down-back to block low dilemma...
Interestingly enough, I found b2b to be more natural (for the lack of better word) for me. It takes me some time to adapt to block button again every time I go back to MK or even stuff like Abyss Odyssey (which is technically isn't FG, but has some similar mech). Probably has something to do with instinctive attempt to move away from threat.
I'm also not sure what was the problem with Scorpion unless we are talking about some ambiguous j3 or whatever (I wasn't very familiar with IGAU pre-patch).