I have just started the process of fairing the outside of the main hull.
When looking along the hull all that I can see out of place is the joins in the glass due to the overlaps. It is very straight, even better than the floats were at this stage.
But one never really knows until the paint is on. Rather than take the risk I decided to just do what I did with the floats.
There are a couple pics below that show the first 4.5hrs work. It really pays to be very neat and methodical when applying the beading and this takes time, in fact if done right, it takes more time than sanding it off.
I've applied beading to the port side of the hull from the gunwale to approx W/L. I used 1.5kg of resin and around 500gms of filler.
Later today I will rotate the hull some more and do the rest to the C/L.

I'm fairly certain that nearly all of this will be sanded off , time will tell.