On Tuesday, June 2, 2015 at 7:11:36 AM UTC-7, wrote:
Ahhhhhh, Marc.

Flight Manual Grob 103.
Page 6, paragraph II.8 Load scheme "TWIN II"
"Maximum load in the front seat . . . . 110 kg (242 lbs)"
"Maximum load in the back seat . . . . 110 kg (242 lbs)"

English is not an easy language. To be more precise, the minimum "maximum" pilot weight permissible under the JAR22 standard is 110 kg. That does not mean that JAR22 gliders are not permitted to have a higher "maximum" pilot weight than 110 kg, what it means is that none of the manufacturers (Genesis 2 is the sole exception, I believe) have chosen to provide over the minimum for the maximum pilot weight. Clear?