What is your line here?

[mongidig]

I think Sklansky was refering to short handed games as far as turning the K to an x if I understand what you are saying correctly.

How am I going to get it heads up by check-raising if the most likely bettor is the EP? MP is going to fold anyway unless he hit this flop.

Check-raising is bad here because it allows EP or MP to play perfectly depending on what they hold since they have position. If they are beat they can get away from the hand and if they are ahead they have choices as to how to proceed.