I've tried out quite a few of the dragon mods out there, but I gotta say this one takes the cake!

The walking animations are superb, were it not been for the fact I've seen the normal one, I wouldn't have guessed this model had ever had a bipedal walk. The helmet and saddle for the dragon is a wonderful touch too, especially as it give them more of the typical horns depicted in a lot of art.

My only real critique is that the wing membranes seem a bit over patterned (which is probably down to preference, the vipertooth dragon's wings work nicely though). Sometimes less is more and the lightning streaks were always my least favourite thing about the vanilla wyverns too... It just takes away from the main body and colours.

The size variation sounds pretty amazing, though I haven't gotten around to testing it out yet (will do soon). The griffin dive is something I (and a few other people I reckon) have suggested adding to other fliers and it works perfectly in this mod! The dragons are just as I'd imagine them, slower than the gryphon but still so graceful.

Would you ever consider making some kind of stackable buff(?) or item to allow vanilla dinos to dive (perhaps limitted to when riding them for performance reasons)? Since you did such an amazing job on the wyvern one. It would make nerfed fliers a lot more interesting and useful. If it was a buff or something of that kind, it should be pretty compatible with most mods/updates and wouldn't have to replace the originals. I can imagine it'd be difficult though, so this is just a suggestion! I'd try myself, but I know next to nothing about modding...

Erm, now I can totally understand if you ignore this, but my PC really struggles with dust effects (I don't know why and no-one's been able to suggest a fix, my specs are pretty decent). Is there any way of adding a config option to turn it off? It's not unplayable, but I suffer major fps hits whenever I get close to the ground (vanilla griffins are the same).

All in all, thank you so much for sharing this mod with us! I can tell you put a lot of time and effort into this and it really shows.