I'm finally getting back to a project that sat dormant for about 2 years. It is going to have some acid etching. I've already done a saber in the past that had etching, and I experienced some success with the process. However, in this new project, I'm considering doing something that I'm not sure will work, so I wanted to ask the community.

I'm wondering if it's possible to do the etching over a seam between 2 MHS pieces, like in the image shown:
etching over seam.jpg

The blue is a random example of an etch area as it would go from the Choke to the Emitter. Is this a big no-no? Is it likely that the acid would seep into the seams between the 2 pieces (which would be very undesirable). Or is it considered a tight enough fit that it should keep the acid from getting into the seam....allowing for a smooth etch between the 2 pieces without mucking it up?

Thanks for any help.