A question about 527's and McCain-Feingold

[zmdem]

My understanding of the M-F law re: 527's is that the 527 cannot coordinate their efforts with either the candidate's election organization or with the candidate's political party and that the prohibition works in both directions.

I would assume that whatever other coordinating activites are prohibited, the following would be included:

Content of the ad's
Where the ad's would be broadcast.
When the ad's would be broadcast.

My question is "if a candidate dissaproves of the attack ad's a 527 is putting out about his opponent and he calls on the 527 to stop the ad's, isn't he effectively coordinating with the 527 as to content and also the timing of the ad, i.e., he is telling the 527 when they should stop broadcasting of the ad. Since under M-F, this is illegal coordination, isn't the candidate forbidden to speak out ?"