A couple days back I laminated some uni and plain weave along the keel for added protection for beaching and trailering.
My original intention was to do this without a vacuum until I realised there was 3.5kg of glass involved.
With that much I decided it was probably worth vacuuming.
Once again I did the maths after the work and again got a 46.5% resin content in the laminate.
Pic below.