It’s totally possible to have identical scars. The primary advantage of bevel down is that inserting the needle past the back end of the bevel should not be difficult at all if you are tenting the skin properly. The scars would be identical in terms of healing if you manage to unflap any skin that might have gotten caught in the hollow with the bevel up method… only the crescent would be flipped for bevel up vs bevel down.
Anyway it’s good to report! Looking forward to hearing about it!