Completely clueless

For what purpose ? That fillet exists to make it easy for the glass to take the change in direction smoothly, not to be a strength element.

 

Every video I watched for fillets added chopped strand. Thought it was importation to...

 

All news to me, the strength comes from the stringer itself, mainly, and the glassing just locks it in place. It is notoriously difficult to smooth fillers that have fibres of any length in them, though you can buy milled fibres for strengthening and thickening filler, they are very short, something like 1/32", if you put longer strands in your mix,you will have a devilishly difficult task smoothing it.

 

No stranding for fillets.

Just bulk hole filling is with stranded.

All fillets must use smooth mixes or they become very hard to make without becoming too rough for glasswork.

 

Ask first qb!

Ask first.

 

Sorry thought I could trust youtube.

 

From earlier in this thread.

 

Ondarvr

When to use or not use milled fiber and cabosil vs just cabosil per you?

 

Well only did like front 3 feet with fibers. Definitely be easier not using them.

 

Three feet of cursing ! Could be worse, you might have continued on.

 

Would it be easier to glass the stringers in using 3 separate pieces and over lapping them. 2 on fillets and one over the top

 

It one often used solution. Go back to my drawing on page 10 it is shown. This method is most useful if tabbing cut to one width. Periodically mark centerline on one piece and 1/3rd or 2/3 on others.
Much easier with out kitty hair.

 

I think you mean a piece covering each fillet coming part way up the stringer and then a third piece over the top of the stringer lapping on the sides.
That will work. It is some times difficult to get woven materials to cover correctly as you get it all spiffy in one area only to have that pulled loose when you start working in another area.
To do it in one piece you can try starting at the top of the stringer and go down one side, then go back to the top and go down the other side being careful to not pull from the first side.
What kind of resin are you using, poly or epoxy? What fabrics? What glassing tools, like brushes, rollers, bubble busters, plastic spreaders?
You can do this to get the fillet material in the corners, and then finish it off with a correct sized socket. Like using your finger for smoothing caulking, but with a socket. Then clean up the excess on the edges with a putty knife.