The inner edge of the rim is blunt, in line with the latest thinking on aero wheels. The shape helps out with side winds. These spoke holes will be refined on production models (they won't be as large).
TriRig got opportunity to have a first look at FLO Cycling's new FLO 60 and FLO 90 wheels, which are going into production in the next couple months. These wheels bring top-level aero technology to an entry-level price point. They're pretty sweet, if we do say so ourselves.