Possible happy outcome with an economical lathe chuck

I bought a Sanou 5 inch 3 jaw chuck a couple of months ago. I was very pleased with it. Smooth , no grit. Going to use it on my rotary table. I have a Sanou 3 jaw and 4 jaw that came with my PM lathe. Because of the way the PM mounting system is ( and i do like it) I have found out that carefull mounting of the chuck and torquing the bolts has a direct affect on chuck runout. I asked PM what thier mounting system was called and they did not give me a good answer. Anyhow, as far as hobby work goes for the price Sanou works for me. My chuck was $70.00 to the door. I was skeptical at first.
 
Recently got a 5" 4 jaw Sanou for my new (old) lathe as it only had a 3 jaw and am very satisfied with it. Well made and nicely finished for the price. In the process of making a back plate for it out of a ⅝" thick cast iron flywheel from a treadmill motor and a chunk of 4140 for the threaded center hub.
 
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