If Kaio-Ken x3 is her limit, it puts her PL around 7000-8000, based on Goku having a PL of (a rather ambiguous) "over 8000" when he fought Vegeta, and only being able to pull off a Kaio-Ken x3 safely. I know, he DID do a x4, but it pretty much wrecked his body.
If Meiling isn't even trying a x4, it could mean:
a) She doesn't have a PL high enough to do it at all.
b) She tried it and wrecked herself.
So... just thinking, and NOT in canon...
If Meiling has a PL of, say, 8000, and seeing how much stronger her level-successors are... I'd say Reimu's PL in EoSD was near-Ginyu level, with Remilia being around Recoome level. An Flandre would be at First-Form Frieza level. Suddenly makes Gensokyo seem less inviting to visit...
Guess we figured out what species of "youkai" she is.
... well, I guess that's that.StarfishMeiling, Meiling! Do a Kame Hame Ha!!No way...Geez... It's not that simple. Because of how much Ki it requires, there's no way it can be done.Well... sorry about this, little ones, but that's a little too much, even for me.Or do a Kaiou-ken x 10!!Awesome!!I'm a bit disappointed, though.My limit right now is Kaiou-ken x 3...In fact, I wonder about that... can it actually be done. To tell the truth, it's got me concerned...Nonetheless, it's not like I haven't thought the same thing... although I've never confirmed it with her myself ...