Hi Tobster,
The only worthwhile answer will come from the LAA, anything else is guess work. Rans S6 comes in two basic flavours, the ES (Extended Span) variety with 153 sq/ft wing and the 116 with, as you might have guessed, a 116 sq/ft wing. Only ES derivatives can be microlight due to wing loading requirements for microlight certification. There are ES versions flying as Group A, so it's not a problem.
Safe Flying,
WKW