
Okay, so minor update.
As I had suspected, the reverse egg toss is just a cancellation of his dash, very much like pivot grabs. The controller inputs look like a semi-circle going from one horizontal extreme, to up, and then to the opposite horizontal extreme. The quicker you reach the other end of the controller determines how far in the
opposite you'll slide. In truth, you can continue to slide in one direction while tossing in the other or actually gain horizontal momentum in the direction of the toss. The direction in which you slide depends on the positioning horizontally of the analog stick. Therefore, when I say "horizontal extreme" in the sentences earlier, don't read that to mean 100% right or 100% left. If your positioning is slight enough, you can still turn around while moving in the original direction.
Also, no johns on learning how to do this. If I can do it, everyone else darn sure can.
Update: SalaboB, your brother is a pretty smart guy. Yoshi's Egg Lay
does indeed time out at the tip. This is neither a cancel (an action you perform) nor a resist (an action the enemy performs). So that's that. Now, some will probably immediately say, "Awesome, this is worthless now," but in response to that, I'll say just try it out when you're over the ledge. Yoshi doesn't have any forward-reaching options, anyway, and if you don't get the timeout, you'll at least get em for what...8% and a free hit when they come out of the egg? I think it's a nice trick to have up one's sleeve. Kinda wish it were a cancel, but at least we know what's going on.
Also, very nice to see everyone working so hard to find out what's happening, hahaha.
P.S. - Don't worry about chainthrows with Yoshi. Focus on the chain
grabs. ^_~