I had the problem with the eboots moving off center during training
rides too. Karen, as well as Brenda Ruedy, told me to file the eboot
toes down some. Jakar breaks over slightly to the outside of center on
the fronts and that was amplified by the eboots' long-toed shape.
Rasping down the toe also helped with the way Jakar was moving in them
at a canter. ~Nikki