[bpratl]

You can get to near zero backlash with the right balls.
I do have a bunch of different sizes. Perhaps a 2 thousand balls altogether. If the screw is not too large to ship I could pack it for you if you want to pay the shipping and perhaps $10.00 for the balls. If not with .007" backlash I would go .0015" to start and see what you get.

Thanks for the offer; but I just picked up the next size balls. This morning I measured the balls and they are all .1238" so I picked up .1250" +-.0001" and I will give them a try.
I will post the results when I finish. Thanks again. Bob