It gives me no pleasure to say this to you Simon, as I know you've put alot of work into it, but there is always the Texel handicap.
But, we can also just take the mathematical models of SCHRS, modify a few factors by a negligiable 0.1% and republish it under a different name. Will be very hard for ISAF to claim proporty rights to the new handicap system.
Wouter
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands