There are quite a few Perchies that have feathering. My boy is a bit in between. He's fot some but not a lot like Clydes or Shires. His brother had a lot of feathering and people always thought he was a Friesian.
I lease a Percheron cross (no ider what he's crossed with) but he is massive-the neck is unbelievable-he is a keg on legs but delightful. Hard to believe anything with a thin long neck has Perch in it???? Usually the big stout neck is a dominant trait. They have a fabulous personality anyway, no matter the looks.