Carve gybe - Please explain

So it's been brought up in a number of topics.
The learning barrier of a Carve Gybe.
I just want a definition between:
1. A carve gybe
2. A planing gybe
3. A laydown gybe
Is there a difference or just a perception?

My understanding is 1. a carve gybe is done with the feet and board, so the board is carving a turning track through the water. Unlike a flair gybe where the sail is doing the work. So a carve gybe isn't necessarily a fully planing gybe
2. A planing gybe is where the board doesn't fall of the plane min speed not below about 10knots.
I guess if you're good enough on a big board you can do a fully planing flair gybe, where the board goes round very flat. So a planing gybe isn't necessarily a carve gybe
3. A laydown, is where the sail is totally de-powered at the downwind point by "laying it down" close to the water. This needs a lot of "Gs" to be developed when laying it down, so it can only be successfully done at speed, try this too slow and you won't be able to lift the sail up again.

And I guess the difference in understanding between Mark and me is whether a "planing gybe" means a gybe entered on the plane, or coming out of it on the plane?

A non planing carve jibe i would call a slam jibe.
All three jibes could be the same jibe if planing.
Low speed planing jibe( planeing)
Med speed planing (carve and planeing)
High speed planing ( carve planing laydown)
Generally

A planing gybe when executed properly, and perhaps more so on flat water, is one of the most satisfying things I've ever done.
When everything goes right it's just magic. I've had tubes at pipe that weren't half as satisfying.

Like this.

^^^ I agree a full planning gybe feels fantastic.

The tack and laydown 360 is amazing. How does he do that?

This is about how I do it although I regard this as more of a power gybe than a full blast laydown. Things to note about this vid are the big sheet on of the sail as I throw it into the turn, and I mean throw it, I try to get from sailing to gybing as quickly and with as little hesitation as possible. The other thing to note is how I sheet the sail out gradually as I bring it up. This enables me to gently shift my weight forward slightly to be in a more stable position for the transition. sometimes I go feet then sail, sometimes sail then feet and when I get it perfectly right both at the same time. Usually it's feet just before sail but it all depends on how it feels at the time. There's two main reasons I like this kind of gybe, It gives great rail pressure and helps control bouncies but mainly I just like doing it.

hope this helps and any suggestions on technique improvements much appreciated.

Hey Cluffy come over to the west and show the gumpies here (mainly me) how to do that