Lol, what country are you from? Your accent is awesome, oh and the video was very informative, I don't actually use neutral jump as a combo starter but still good to know.
Portugal, thank you.
And yes, starting a combo with neutral jumping Punch is anything but easy. But this also affects combos post-spear. Meaning: you should do a NJP after a spear, followed by a dash in b+2. It'll boost your combo damage.
Example (taken from my other
thread)
2,1 xx Spear, nj. Punch, dash, b+2, j.K xx Teleport, dash 1, 1 xx Takedown = 40%
Same combo as above but with crossover jumping punch instead of neutral jumping punch= 34%.