I was just re-reading this thread and came across this thought--
>>>> From what I have read this is not enough even for the restricted registration. She basically looks like a Quarter Horse, she has a really thick tail and mane, which I know is not a official characteristic but all the ones I have known have had thin mane and tail.
Let me reiterate-- a horse from acceptable breeding (at least on regular registered ApHC parent, and the other parent an ApHC horse or a registered horse from the list of ApHC approved breeds) can be 100% totally solid with not one Appaloosa trait and still be eligible for ApHC registration with an "N" (Noncharacteristic) prefix.
Below are 3 solid, registered Appaloosa mares. These mares all have blanketed Appaloosa sires-- the chestnut mare has a chestnut AQHA dam, the red dun has a palomino Appaloosa colored dam, and the palomino mare has a chestnut solid Appaloosa dam.
All of these mares have had registered Appaloosa foals. Because they are solid, they must be bred to colored ApHC registered stallions for their foals to be ApHC eligible (but their foals are eligible for registration whether solid or colored-- solids are registerable with an N prefix and are breedable, but are not showable at ApHC shows unless a Permit is applied for and a fee paid, etc.)