Another roan Appaloosa Spanish Mustang was the stallion Straight Arrow SMR 5, whose ancestry included 2 lines to a ‘roan Appy Ute mare’ and also Crow Indian stock; see below:
Straight Arrow breeding: 56.25% Bookcliffs, 18.75% Ute, 12.5% Crow, 12.5% Charlie Williams
sire: Ute: 75% Bookcliffs, 25% Ute
dam: Tootsye: 37.5% Bookcliffs, 12.5% Ute, 25% Crow, 25% Charlie Williams