Need help with partial cylinders

[[Ma...]]

Hello here experts 😉

I'd like to hear your suggestions how to handle these real and simplified examples.

ADD-ON: these are forged metal parts - sandblasted.

We sometimes struggle with evaluation - many parts with different dimensions, but they have this in common. Some of drawings are really old ( 20y+ ) so we can not oppose now with customer on bad drawing.

We use ISO, but I'd like to hear for ASME too.

Thanks for any help 😉
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This "ex_2.png" i tried to measure cylinders as 2 circles on ends to get coordinates and diameter - also used in curves to bestfit for base A.
Then i measured them as 3d curve - created theoretical cylinder with corrected coordinates from first cylinder and recalled meas. points from curve. Then used profile callout.
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[[Ma...]]

❓

[[SH...]]

What is your datum A? Mid point, line ?. For 3D profile DRF completely constrained. I think freefrom surface with its own alignment will work.

[[Ma...]]

For datum A is symmetry of those 2 cylinders.

I've posted 2 pictures of 2 parts, so it's not one part 😉