workin the spin move

I am having Juice hit the box from about 15 feet and I am being the lane board. When she hits the box I do the spin work and she immediately drops the ball and comes for the tug. We have worked it 3 times this week. I would like to have Isis, Klepto, or Xena run with her at practice tomorrow night to create hype. I'll put her stride regulator (12 inch clear ruler) on the floor and reinforce the 3 strides. I plan on doing the same thing in Iowa on Saturday and WOOF on Sunday. The more comfortable I can get her with three the more that muscle memory can be re-established.