I think we could use the occasional injection of more random lab stuff for Pika.
Jump canceled grab is on frames 7-8 with 30 frames of endlag. Dash grab is 9-10 with 39 frames of endlag. You therefore always want to dash cancel your grabs. Pivot grab out of run is on frames 10-11 with 35 frames of endlag, but it does have a slightly greater range that may be a benefit sometimes. In comparison, a pivot jump canceled grab needs a minimum 1 frame to pivot and 1 frame to jump, so if you are perfect you save a frame.
This is probably already known but Pika has different landing lags for different aerial actions.
- Normal landing lag is 4 frames before shield can come out.
- Landing lag after air dodging (regardless of whether into ground or falling from aerial use) is 10 frames.
- Quick attacking into the ground or any time above it is 30 frames of landlag, BUT if you fall from a height greater than the length of one QA (for example, jump then immediately QA straight up) Pika goes into a different type of fall (where his tail moves a bit more) and that has 4 frames of endlag.
This probably doesn't really amount to anything as the amount of fall time is very punishable, especially since Pika's drift is worse and he cannot fastfall while in the QA fall, but hey if you find yourself recovering needlessly high then at least you're not completely helpless (only mostly).
If you QAC Jump and jolt within I believe 3 frames, Pika will autocancel, which saves about 7 frames of the jolt's normal landing lag. I'd like confirmation on this if possible. Note this doesn't work if you land above your QAC point. Keep in mind jolt is usually not the safest option out of a QAC.
That being said, you can also B-reverse the QAC Jolt.
Pika can in fact B-reverse Quick Attack, there's just no point since it's a directional move to begin with.
Finally, people have complained QAC Fair is bad since it doesn't work, but you can use how its landing lag autocancels to act maybe 1 or 2 frames faster than a QAC waveland. This only works if you fast fall it (otherwise it takes 12 frames instead of the waveland's 10), and if the PMDT fixes QAC Fair then who knows if it will still be possible in future updates. I just find the QAC Fair to any smash a little more fluid on the C-stick but that's probably just me.