Will,
Thanks for the input. It is greatly appreciated.
Front weight bias makes sense. The ride height increase I made in the back may have contributed to this.
I put a fresh front on last night. I'll take it up to the mountain this weekend, ride it Saturday and photograph it. Sunday I'll clean off the hanging bits, drop the rear two mm, ride again, photograph and compare. Maybe I'll see something from this.
Would it be worth my time to make a static front / rear weight bias measurement? My employer has a set of scales designed for setting up race cars that will allow me to put a separate scale under each wheel and get individual weight readouts while I sit on the bike.
WHC