Back in 2009, I was sure I'd found the answer to the rip fence being hard to lock up on both tracks.
In Post #13 I posted pictures of how the clamper should be bent.
I was dead wrong. The tail that pushes the rod toward the rear of the saw does have a bend in it.
While futzing around with my latest BT3100 acquisition I took a look at the innards of the rip fence mechanism. I'm sure that the saw is factory original as it has only about 2 hours on it.
The clamper definitely has a bend in it. This is how it should look.
I apologize to anyone who followed me down the wrong path.