I agree on the Y with bearings through the fuse being the best overall. But the twin servos in the tail are the stiffest as far as linkage goes.

The one I had fail was on a YS powered bird. Electrics don't have that vibration. When I had that happen on my YS powered ship I replaced the twin servos with a Y push rod and bearings on the push rods where they exit the fuse. Rock solid system.

Tim