f2 is a good move, but, you have to be frame precise to hit with a standing 334 before they can duck block so 34 dont wiff, 334 is a 10 frames startup,1 frame precision so they don't duck, pokes autoduck on 0 startup just in case people didnt know that, 3,3 will hit them if they try to poke, but is not easy to hitconfirm for a net unless you are very good on your reactions, if they duck block the 3,3,4 the 3,4 will wiff and they can punish cyrax, its good against big hit boxes chars really, trying a standing 2 "11 frames"to combo after a blocked f2 which is + 11 frames, if opps are mashing pokes they will hit cyrax out of this startup before it hits unless you were 0 frame precised. Its a good move but it is risky due to its speed. its goo using this in the corner and go for a blocked 3,3,4 +5 and then possibly a d3 out of poking range into a ragdoll, I dont use this move much, but sometimes i abuse it until i see my opps know how to deal with it