Just like Warren said it gives you the possiblity to have some errors and fix them if needed...wouldn't be possible, or very difficult, with only CF. It does as well make the part UV-stable with a good gelcoat.Keep in mind that it will add some extra weight...and normally if you use CF you aim for the lowest weight...
So thats why I don't use a gelcoat, just like Wojtepanik...
Just aim for a perfect result straight out of the mould
