I simply got tired of the constant work and spending required to keep the ball diff feeling the same run after run after run..
With the gear diff its consistent race after race, and yes although it may eventually leak its fluid out it never gets gritty or grindy like a over barked ball diff gets..
Seeing that the touring car community has gone to gear diffs im thinking the old skool thinking of ball for racing gear for bashing is behind us..
28$ for a gear diff, i run the thing till the outdrives look worn.. they buy a new one.... A ball diff would have been through many rebuilds that would cost more $$
Im cheap and lazy