Sewing your tail at the side seams and dorsal, side fins

[Cyhireath]

What is the best way to sew your tail together at the side seams and make the seam as minimally visible as possible? Overlock stitch? Neoprene is too thick to sew inside out and then turn...Do you add extra latex to the seam line after you sew it together?

I thought about adding some extra fins, but how do you all make your extra fins? Do you use latex and lay it down on some vinyl, let it dry and then peel it off and attach it to the main tail? If so, how do you attach it so it doesn't fall off?

Thanks!

[Mermaid Lorelei]

From what I know, neoprene is actually able to be turned inside out. You just have to go very slowly and be very gentle with it. Extra latex along the seam line would probably be a decent way to do it though, it you wished to go down that road.
Most side fines, dorsal fins, etc. are attached by being sewn onto the tail. They are usually placed along the seam lines, but some people make extra slits in other places and sew their fins in there.
Hope this helps. :3