Used gear set patterns are always a crap shoot. I would not expect a great pattern and live with good. You did settle for used stuff.
Looks like you need to move the pinion away from the CL (more shim) then readjust your backlash.
Proper bearing preload will usually create a decent impression. I use a box wrench on a ring gear bolt to turn the carrier and let the pinion bearing preload create the load with great success.
I hope this helps.