Diane, now I know why you like Topper so much... He's a half brother to one of your mares, same sire Buckeroo's Top Cat.
Unless I just didn't notice the black points on Showy's lost colt, Topper isn't homozygous for black; thought he might be since 4 out of 5 were black based or bay. His sire is buckskin and dam black, so thought it possible for homozygous for black, but now not so sure. Paternal great grand dam is palomino, so that red could have carried through all that way. Looking up his dam... And, maternal great grandsire was Boogerman, so chestnut, so that red could have carried down, could have come from either side. Dang, it just dawned on me right now, Topper traces to Rowdy; but I did test for LWO and he's negative.