Can't speak for others but I have just finished glassing two Guillemots with Raka's 5 oz glass. I did not have a good experience. I've used Raka 6 oz and 3.75 oz in the past with good results but this last experience was a bear. The glass did not accept the resin well and the cured product still shows some white weave, not everywhere, but some places are worse than others. I feel confident that I did not starve the glass. Also, the glass did not sit down well and required a tremendous amount of working to get it to sit down without wrinkles, bubbles, etc. All in all I would recommend single layers of 6 oz cloth for all but the well experienced.

My $.02, for what it's worth.

A single layer of 6 oz, perhaps?? Or maybe a

: It sounds like the 5 oz. is the answer to everyone's prayers (at least for a
: typical non-expedition boat) and should yield the strongest layup with the
: least weight. A recent poster used it successfully (can't remember who it
: was). I'm planning to go this route. Light boats are much more fun, imo.
: The previous solution, two layers of 3.2, was much more work, but yielded
: a light, strong composite. 5 oz. saves you an entire layer application and
: is supposed to be stronger than 6 oz. Tell us what you decide, OK?
: --Scott