I was also wondering if Jeff would use the CDT but after seeing his long talk with Jordan on the hammock this morning, I believe he will. He was talking to Jordan about "after" Russ goes he wants Jessie and Nat up and Jordan agrees. He was trying to explain to her that keeping Russ would help them get Jessie out. He also said that after that, there were still enough people in the house that hated Russ and would get him out. He said that if they got Jessie out only Nat and Chima would hate him because the others always go where the power is. Jordan kept saying they had to win HOH and get Jessie out. SOOOOO I think he got his point across to her and Jordan said Michelle would vote with them (she was referring to next week if they won HOH) and of course, if Russ is saved he will vote Jessie out too. Even if the CDT comes down to a split vote, Jeff will have the power to evict Jessie.
If you get flashbacks, try looking for their conversation on the hammock, I think it was about 11 BB time and cam 1 I THINK (emphasis on think). These two are very funny, I find myself laughing out loud at them. As far as I'm concerned, they are the only entertainment left since Casey left as far as humor goes.