Yes, MiniLoco, I agree with that statement. I have seen 'false snowcaps' - when one parent is an appy and the other is not.
You must know what is behind the horse in pedigree- it helps anyhow, to know that BOTH parents are truly Appy for it to be homozygous.
I have a great example of the roan that now looks like a few spot. She has always had a foal with at LEAST characteristics at birth, plus a colt with spots over his rear and her first foal, by my first appy stallion, was a snowcap.
However, I would NOT say that she is homozygous at all and is a roan to be sure, as she was born solid black and slowly colored over about 5 years to what she is now. I had someone mention my 'few spot' mare, and had to tell them that she is a roan, not few spot. She has also only been bred to Appaloosa stallions (two previously) and is now expecting her first foal by my Renegade. Ha, needless to say I am VERY excited about that!
A few spot is born just that- a few spot, as is a snowcap. They dont develope into one later.
I have seen many grayed out horses advertised as few spots (OUCH!!!) or as 'ghost leopards', etc.... (not even sure where that term came from) but they are simply carrying the gray gene and have lost their contrasting color.
A great source of information here is Ginny at CCMF (now owns the sire of my stallion Legacy). She has answered some of my 'Mini Appy' questions when I first got started in the Minis.