Did you guys change the flying rules to fit with UWZ. I see you use the term 'altitude'. Basically it means 1 inch = 1 altitude. So 12 altitude = 12 inches above the ground and you measure the vertical and horizontal distance for range, but it is a CC attack you want to make then you need to fall in the same altitude. So if your big Sisters of Tiamat reaches 4 inches up and has a 2 inch reach then she can bite a flying model up to altitude 6 as long as she can get in base to base or like altitude 4 and within 2 inches such as if a goblin is standing on a ledge on a piece of terrain that is 4 inches above the base ground level for the game table.
At least that is how I understand it. Instead of range bands that = 3 inches per band its broken into altitude = inches. I like it. It makes flying models neat. You can list 3/5 for movement and a max altitude if you wish like 15 if you want. For example, a hovering mini like a Drone Rider might only be able to go up to altitude 15 but a demon wing is limited to altitude 12. Why? because somethings you only want to have limited or hovering flight.
Do I like fliers? Well, I like the Soulflayer, demon wings, drones, drone shaman, and ophidian if that tells you anything.