Looks like I have the proof Snappy is dominant to Wavy
The proof is a little convoluted so please follow me along this twisty path
Chart 1
Mom Tibeldie shows Snappy tail and hides Fluffy tail or more recessive
Dad Rick starter shows Genesis tail
Baby shows Wavy tail
Short aside on Mom:
Mom's Mom Yuna shows Fluffy
Mom's Dad McIvan shows Posh
Therefore Mom's Dad McIvan hides Snappy because Posh and Snappy is dom to Fluffy
So Mom has to have Fluffy or more recessive as the hid from Mom's Mom Yuna
Baby's shown has to come from Dad Rick since it's not Snappy nor Fluffy and Wavy is known to be dominant to Fluffy
Okay now that we've agreed Rick has Wavy hid
Chart 2
This Mom Nanne has Swanky tail shown
Rick Dad has Genesis shown and as we have proven, Wavy tail hid
Baby Arawn has Swanky tail shown which means baby has to hide Wavy tail
Chart 3
This Mom McYalissa has Snappy tail shown
Baby Arawn has grown up and now is a Dad
Dad Arawn has Swanky tail shown, Wavy tail hid as proven above
Baby has Snappy tail shown
Known: Swanky is dom to Snappy so could not have passed
Therefore Baby has Snappy tail shown, Wavy tail hid
Snappy has to be dominant to Wavy
If anyone disagrees with my analysis, speak now or forever hold your peace (lol, I just wanted to say the forever hold your peace part because you know how everyone holds their breath for a second and then nothing happens -- or at least you hope nothing happens becuase then there is a huge furor usually in a movie scene)