Kidprecision, what I would do if a falco is spamming short hop lasers, is:
1. I would spam them back untill they get in the program and notice I'm not going to take that.
2. I would try to power shield/jump over the lasers.
3. Use your reflector.
Kashakunaki, the way I do the double reverse lasers from off the stage, is I fastfall off the stage, push the control stick up in a diagnal way so it goes up and towards the stage, and then start pushing the B button, what Chred2aKrisp said is correct, its mainly about the timing.
Chred2aKrisp, you should stop doing the dair shine after the second shine always, what you should do (I learned this from Lambchops) is do a Nair, to jab, grab your opponent, throw down and downsmash. Just do anything after the second shine thats different. Like a Nair to forward smash, or Nair to jab to downsmash. IMO Nair is one of the best choices after the second dair shine.
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Tarheeljks, its best to waveshine your opponent to get them with a shine when they are shielding, but if you know how to JC'ed shines, you should switch it up, Like Waveshine Dair, waveshine behind them Dair, and then do 2 JC'ed shines. And the best time to do the Shine (JC the shine) to a Bair is at almost any damage, just not like over 120 ish, if you do it fast enough you can do it to like any char at like almost any damage.