I am having a secition of non-skid re-gelcoated due to damage done by a
previous owner.

I have a guy ready to the work...but he needs to match the gelcoat using
a computer. Takes 7 - 10 days. I offered up a hatch on loan as a
"sample" but he says no...I will be without the hatch for 7-10 days.
Instead he wants to carve out a 1" chunk of gelcoat from the area to be
repaired. Says he'll patch that spot when he applied the new gelcoat.
The area is cosmetically challenged, but no deck problems. I just feel
odd agreeing to let the guy do this. Is this a normal requirement or not?

Anyone with experience care to comment?