I don't buy it. Chan Ho had a couple years where he had phenomenal opponents average against (like .210), and many strikeouts. That makes him hard to hit. True, he did most of his damage at home, but I don't think a home park makes you unhittable. It just makes some home runs long fly outs, and foul balls catchable.
I would expect Chan Ho to improve dramatically this year. He may not set the world on fire because he never has, but I wouldn't expect his ERA to be in the 5.00s again. He is a yo yo, catch him when it is coming back up.
I would guess 4.25 with 15 wins, and 200 k's. not bad.
You don't need a quadraphonic Blaupunkt, what you need is a curveball!....