Truing APC Props and drilling prop hubs?

[rwantz2 at comcast.net]

Mounted a new prop last night - APC 16.5-12W, and when I screwed it onto the crankshaft, I noticed it wasn't turning true.  Upon inspection, I discovered that the hole in the hub was not centered.  It looked ok from the drive washer side but the front of the hub was off by a good 1/16".  Obviously this prop wouldn't track true.
I always ASSUMED these were molded in and were pretty accurate, so never checked them.  
I opened up the front of the hub a little, without touching the rear, and let the thrust washer true up the prop.  How do most of you true props?

Also, I just got the Tru-turn TT-813-A double jam nut spinner adapter for YS 140 engines.  I always used the standard 814 double jam nut in the past, but the 813 requires a 1/2" hole be drilled into the front of the prop hub (at least part way).  What's the best way to do this?

Thanks,
Bob
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