Simmoms balsa

Did Bob Simmoms chamber his boards or were they solid ?

The balsa boards were solid, with scarphed noses for increased rocker.

It’s Bob Simmons

http://files.legendarysurfers.com/surf/legends/ls15.shtml

I might be wrong but I was always under the impression that he also

 made some boards that were styro foam core with plywood skins

 and solid rails. (or am I just imagining this)

There was talk that he made a 6' styro 'Mini' wasn't there?