I got him when he was about 6-8 mos. old, not 100% sure. However his tail colors are solid so maybe he is a split to pearl or would there be no mottling because he is a white faced 'tiel? The white I am seeing on his back would be considered ghosting.
If he's not visual pearl, then he's probably split pearl and yes, that would be "ghost" pearls. I would certainly love to see the underside of his tail feathers fanned out though! I had a normal male split pearl and he had quite faint 'ghost pearls'. I only knew he was split pearl because he had a pearl daughter and they came to me as a family.
if he is a cinnamon split to pearl white faced or a cinnamon pearl white faced and he mated with my pearl pied white faced female what would be the results?
He's probably Cinnamon Pearl Whiteface split Pied or Cinnamon Whiteface split Pearl Pied. Paired with a Whiteface Pearl Pied could result in various colored offspring. I'ma cheat here and use a calculator! Too early in the morning to calculate in head!
Using...
Genetic Calculator 1.3 Cockatiels
1.0 Cinnamon whiteface pearl /pied x 0.1 Pied whiteface pearl
% from all 1.0
50.0% Pearl pied whiteface /cinnamon
50.0% Pearl whiteface /cinnamon pied
% from all 0.1
50.0% Pearl cinnamon pied whiteface
50.0% Pearl cinnamon whiteface /pied
1.0 Cinnamon whiteface /pearl pied x 0.1 Pied whiteface pearl
% from all 1.0
25.0% Pearl pied whiteface /cinnamon
25.0% Pearl whiteface /cinnamon pied
25.0% Pied whiteface /cinnamon pearl
25.0% Whiteface /cinnamon pearl pied
% from all 0.1
25.0% Cinnamon pied whiteface
25.0% Cinnamon whiteface /pied
25.0% Pearl cinnamon pied whiteface
25.0% pearl cinnamon whiteface /pied
In short, if he's a visual pearl and paired with a pearl hen, all offspring will be pearl. If he's split pearl, then you'll get some visual pearl offspring and some normal offspring. All will be whiteface. All females will be cinnamon. Some may be visual pieds, too.