Well this is the sort of question like:how much time does 8-4 WJ save? There isn't a definitve answer, like if you screw up a bit it might only save 3 seconds.
He's probably just looking for a general idea, but yes, the amount of time you save decreases if you don't do it as optimally. Like when I asked how much time you lose if you do a slow jump at the very very beginning of 8-4. I wasn't looking for a definitive answer, I just wanted a general idea (it's around 2 framerules BTW).
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