Hakan Slide FADC problem

im quite new to hakan but been playing ssf4 since vanilla, used to play cody but i just got really bored with him and lately have been playing loads of hakan and back to having tons of fun!

anyway life story over i am noticing one small problem when im playing, i dont usually havem very any issues with fadc comboss these days but when playing hakan it seems there are some strange properties on his slide that means you cannot fadc at certain ranges (i think). if anyone knows what the hell is going on would greatly aprecciate it!

What you need to do is only press the button for slide (smp/md.p or /hp) only once not twice as if you are confirming for the press after slide but once.As soon as you make contact to an opponent that is blocking then you can fadc cancel into whatever combo or ultra( preferably ) or grab. Strangely if you hit confirm after his slide you cannot fadc .