So first off I wanted to say that I REALLY like this mod and I could easily see it take over the place of Classic Flyers, Speedy Flyers, Naj's Speedy Flyers, & Faster Flyers; depending on how far the mod author is willing to push this creation. To that end.....
Talk with me about other things.

So I just spent about 2 hours or so testing with vanilla, Classic Flyers, Naj's Speedy Flyers, & with Fantastic Flyers. I am confident to say that yes they CAN all run together at the same time. However the real catch is that only the mod at the TOP of the group takes spawning priority.

Example 1:
1. Classic Flyers
2. Naj's Speedy Flyers
3. Fantastic Flyers
= Classic Flyers spawn

Example 2:
1. Fantastic Flyers
2. Naj's Speedy Flyers
3. Classic Flyers
= Fantastic Flyers spawn

You WILL need to use the command "admincheat destroywilddinos" in the console whenever you change this order, or you will not notice a change in which mods flyers are spawning.

You might be asking, What is the POINT of this if we cannot change or breed the different mods together? Well my friends, you CAN with the help of a brand new mod that I recently found on the workshop. "Convert Any Dino" Mod ID: 3024419338 https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3024419338 Now, I want to warn everyone that the mod author has mod dino converting disabled by default AND says to enable it at your own risk due to dinos not being compatible. However I think that is more for the more abstract dinos and not ones so obviously matching. I have just used this mod with great success in testing all three of the flyer mods Classic Flyers, Naj's Speedy Flyers, & Fantastic Flyers. Just FYI, I do not know the mod author for "Convert Any Dino" and only found the mod 09/12/2023. I recommend having the "Convert Any Dino" above the flyer mods.

You will need to be level 70, have 55 engrams, and have cryopods to do this. Fairly sure it needs a TEK Generator or equivalent (Only thing I was using). It will NOT work if you try using Dino Storage V2 mod or similar mods, I tried. Make very sure you select the right class ID as there are still some bugs in the lists that can show up, and it can crash the game and loose that particular creature. Example: I tried converting a Pteranodon, but one of the options path had "moth" in the name, that crashed my game.

You will also want to place the following in your GameUserSettings.ini file near the bottom:
"
[ConvertAnyDino]
AllowModdedDinos=True
"

If desired I can setup a video for this to walk everyone through it.

• Argents hover slightly over the ground when standing (empty space under feet)
  
• Base Argent version FIRST person camera is inside the head
  
• FIRST person camera positions & angles are too high for Griffin and X Argent
  
• Likely due to bug #1, Argents can have body angled forward when at rest at times

Several of these come from Naj's Speedy Flyers mod, and several other Flyer related mods on the workshop.
NON-Creatures Suggestions:

• Add some Config settings for altering speed stats (Naj's Speedy Flyers)
  
• Glider Suit & (Ini config speed settings)
  
• TEK Rock Drake Saddle
  
• Griffin Armor Saddle/Charm
  
• Phoenix Armor Charm
  
• Wyvern Armor Charm
  
• Flyers able to walk backwards
  
• Allow weapon use on flyers while mounted
  
• Imprinting bonus to speed and stamina
  
• Give griffin genders & live birth
  
• Snow Owl/Pelagornis/Argent can run on the ground when mounted
  
• Give Wyverns/Phoenix air breaking
  
• Make Phoenix less fiery for better visibility
  
• More color options (rare) for flyers above lvl 100
  
• Better Wyvern turn radius
  
• Increase damage of Pteranodon spin attack
  
• Have less fall damage
  
• Does not auto fly when mounting
  
• Speed per level from 1% to 2.5%
  
• Breedable Phoenix with mutations
  
• Phoenix can land

Creature Suggestions:

• All Crystal Wyverns: Blood Crystal, Ember Crystal, Tropical, Alpha Blood Crystal
  
• Managarmr
  
• Corrupted: Dimorph, Pteranodon, Rockdrake, & Wyvern (Taming with ini)
  
• TEK Quetzal
  
• Normal Wyverns: Fire, Poison, Lightning, Ice
  
• Quetzal
  
• Lymantria (Moth)
  
• Pelagornis
  
• Pternaodon
  
• Tapejara/X-Tapejara
  
• TEK Hover Skiff
  
• Admin Skiff (can fly under water, spawn command only, no inventory/weight restrictions)
  
• Rock Drake
  
• Phoenix
  
• Tropeognathus
  
• Astrocetus
  
• Alpha Wyvern
  
• Astrodelphis
  
• Maewing
  
• Voidwyrm
  
• R-Quetzal
  
• R-Snow Owl
  
• Desmodus
  
• Dimorphodon/Aberrant Dimorph