Based on my experience, a new OPDA/OPDA gear will quickly pick up the same wear pattern your existing gear already has. The only real fix is a new cam and OPDA gear. You can buy yourself perhaps a lot of time just switching OPDA gears, but eventually the cam will have enough wear on the gear that it will exceed the window of error that the computer can tolerate even with a new-ish OPDA gear.
'06 Rubicon Unlimited
Sienna Jeep Club: Member #15