I finished glassing the hull of my CH16 on Saturday and also used Raka 5oz.
I guess it is a little harder to wet out but at the end goes on very smooth and is completly invisible. I did use a squeegee to work the epoxy into the glass and to press the glass firmly against the hull. I did take a couple of passes with the squeegee to wet it out. I would defenitelly use it again. Just my 2 cents from a first time builder.