I'd put myself in a similar category, I'm smarter then most people I know, at least at things like mathematics, memory, english, spelling etc. (still do lots of typo's)..

I can follow quite a bit of the keymap/hotstrings for the FTL, but could not quite get it to work. It got a bit frustrating, so I eventually decided on the no focus manifesto, because that's basically macros entirely, which are easy to follow and adapt.

One of the big selling points for IS Boxer was automatic FTL. Just check some boxes during set up, which use modifiers on three premade keymaps. You can freely use all the modifiers you want in all other macros, without interfering with the FTL.

Having used FTL from ISB, its definitely worth having.