Wobble: I’m not sure what the refutation to White F18-> Black E18 is? Maybe E19->E18->C19->D17->G18->D19? I think it would be good to have some line after E18.
posetcay: I couldn't follow your comment, F18-E18 is already the main variation.
TherapieGo: I think it would be essential to add an opponent resistance sequence. White F18 -> E18 -> E17 and here I think adding the fact that Black can also do E16 and White has to go down to F19 is a sequence that should be checked.
I couldn't follow your comment, F18-E18 is already the main variation.