Thanks everyone for the input. I was also not seeing anything in ASMY Y14.5-2018 that restricts this method.
But you did bring up good points on the orientation concern by not having datums. Clarifying that this is a basic gage dimension is also a good idea, our inspectors got thrown off by...
I have a small feature with an angled wall and want to locate its position. When using the corners of the feature it's difficult to get repeatable measurements due to the small size and variation in the radii. So instead, I have a basic dimension representing the contact point of the mating part...
