Well since we can no longer reply to topics after 120 days, I guess we just have to duplicate them now.
In the previous thread I showed swapping the FP7's from the claw to Kadees, and pulling them closer together. I finally got some pictures of the 2 rail pilots that I swapped out to get rid of the huge hole in the front.
Here's the claw with the 3 rail pilot.
Kadee and the 2 rail pilot. I also added the air hose.
On the lead unit, I pushed the Kadee back further for a better look since it's the one you see head on.
On the trailing unit, I left the Kadee out just a bit further to allow room for the trip pin on the 1st car so it don't hit the pilot and derail in the curves. (Scratch built caboose by Brother Love  
You can see the trailing unit's coupler sticks out further when it's not hooked to a train. When it pulls a train, you don't even notice that small difference.
The only thing I would still like to do is body mount the steps. I think they are in the works for the F7's... (I hope so) I also hope the drive train on the F7's are the same as these FP7's because they are unbelievably smooth and quiet. They don't fight each other, even with the B unit being non powered.