So an update about the whole finlet regrowth thing. Been a little over a month and the endli has grown a lot, 1 1/2", from 13.5" to 15". So the finlet was totally broken off at the tip and I was hoping it would grow back, well it didnt really grow back but the broken part became part of the top ray and started to look like a normal finlet again. Hard to describe with words, maybe the pictures will help explain it. Not perfect but looking much better. Im hoping it will fill in a bit better still, but It looks pretty good.
A bit blurry but I was trying to focus on the finlet,
Before
Now
Before
Now
Before
Now
Can see now it looks pretty normal, and this pic was taken a little while back