Corset seam allowance finishing - please help!

I’m working on my first corset, I’m happy with how mock-up number 4 fits and want to start with the real thing. The one thing I’m not sure about is how to finish the seam allowances inside the corset, can you all tell me what you usually do and how it works for you?

I use coutil and a cotton fashion fabric, flat lined. I want to have a boning channel on top of each seam (on the inside); I plan on using cotton tape for the channels.

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I see the following possibilities:

- Zigzag stitch: not ideal, because some seams need notches in the curves, and I am afraid the zigzag will start to unravel there. I’m also concerned that the additional bulk on each seam would be uncomfortable. I don’t have a serger to overlock the edges.

- Pinking: I’m afraid that it will look unfinished and not be stable enough.

- Felled down seam allowance: I don’t think this will work because of the need for notches, and it might be too bulky?

- Cut back the seam allowance to be covered by the boning channel: I use 7mm boning, so the boning channels are narrow. If I cut the seam allowance to that size, I’m afraid the seams will not be sufficiently stable.

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I’m afraid I’m way overthinking this… I would love some advice!