and you sound like a naive fan boy
they wrote the book to help sell epoxy resin
your taking that to whoring is entirely a your head space problem
i said they are in the business of selling epoxy resin first .. and thats just a simple fact
to put it simply .. they didn't write the book to make...
i will leave that to you doing your own research
if you get to stuck get back to me
i think its something neither of us have experienced but others here have
so it has to be considered when advising non pro's
the must be dry advice is correct
if its been in fresh water no biggie
if its been in salt you may need to soak it with fresh to leech out the salt
solvent is not as helpful as fresh water and then a warm dry room
i wouldn't use any epoxy at all .. the chances of it making a better job are a lot...
as the others have already said
these are basic touch up repairs
albeit probably should have been done a little earlier
with the exception of the tip i would just create a key and dab on gelcoat for the fix
the tip after a small guilt trip i would sand to a nice streamlined curve then build it...