Ok, time to get scientific up in this bitch.
Blanka’s super charge works like this.
His super charge memory value is ‘0x02’ by default, aka when he isn’t charged. Once you have a horizontal charge, this value increases to 0x04 while you’re holding 
for the charge. The moment you input :f:, this value increases to 0x06, and then 0x08 on the next frame while forward is being held during this time, you have 5~6 (it’s random whether its 5 through 6, i’ve tested multiple times) frames after hitting :f: before you need to put the next input , () or the charge is lost. Once the is input, the value once again increases by 2 to 0x0A, once this value has reached 0x0A, you have 4~5 (once again the window is random between 4 or 5) frames to input the final :f: before the charge is lost, once the final :f: is input, this value increases by 2 once again, to 0x0C, you have 13~14 (random, yet again) frames to input the :p: before the charge is lost while holding super.
THUS EXPLAINING WHY THE HOP FORWARD IS POSSIBLE.
(CHARGE) :f: :3k:(5~6 frames), (4~5 frames), :f: (13~14 frames)+:p:
Which explains why you can hop forward (which is roughly 23-24 frames, I haven’t gotten the exact amount, yoga book is wrong, like it always is with the frame data) and then super. This also means, it’s not always possible to do this even if you time it perfectly due to the random window. If you get the 5 + 4 + 13 window, that’s only 22 frames, not enough to continue after the hop. If you get the 6 + 5 + 14, that’s 25 frames, good to go.
I’m not sure if the input window is random because it’s programmed that way, or if it’s because of the turbo in super turbo, since I read something about a dropped frame occurring and it gets worse the higher the turbo speed is.
So ya, if you were interested in why this is possible like I was, it’s explained.
You can thank my free time.
Interesting side notes:
Blanka needs 47 frames to charge horizontally (this includes his super, but doesn’t include the extra motions for the super) and vertically.
You can maintain the horizontal charge for 10 frames after being charged and still blanka ball if you press :f::p: BY the 10th frame. I’m sure there is a 9~10 leniency here also, I didn’t test this much but I’m sure the window is random, probably that ‘turbo dropped frame’ issue.
You can maintain the vertical charge for 7~8 frames after being charge as long as you hit :u::k: BY the final frame of the window.
Testing done under whatever the default speed is for SSFT USA 940233 (Turbo 2?)
:f::lp: as I land it doesn’t come out. The weird thing is, is if I do just wiggle the stick back and forth during the hop and hit punch as I land it comes out.