Noooooo don't give up, Juece can get it, and it get it randomly even without using the binds every now and again. You'll just catch on sooner or later.
Its timing is really odd, you have to practically press A, lift your finger from it, then press a+g quickly. Its really good though, like +8 on block i think. Its i22 I think which is quick for how much advantage you get but still isn't fast fast.