Reported position of cylinders

1) Yes, if you are able to physically measure the holes as a cylinder then you should.

2) With the Geometric Tolerance command (and previously XactMeasure), the wort end of the cylinder axis is reported for position.  Legacy dimensions give you the option of start, end, axis average or worst end.  However, since position applies to the entire length of the feature, you should always report the worst end.

Follow up question.  If the holes are threaded, can that potentially throw off the results?  I'm dealing with that myself and the starting point for all the holes is reporting in position, but the end point is out on some of them.  But it's wildly inconsistent.  Some of the worst ends still look ok, and some are way off.  In some cases, the starting point is actually worse than the end point.  Could the threads be giving me mixed results?

Follow up question.  If the holes are threaded, can that potentially throw off the results?  I'm dealing with that myself and the starting point for all the holes is reporting in position, but the end point is out on some of them.  But it's wildly inconsistent.  Some of the worst ends still look ok, and some are way off.  In some cases, the starting point is actually worse than the end point.  Could the threads be giving me mixed results?