Wanted: Flapped polar curve of a ventus ct

Dear all,

I'm searching the internet already for a long time to find a flapped
polar curve of a ventus ct but I can't find any.
I can find the standard polar curve in the flight manual, but not the
one with the flaps in it.

Can anybody help me out with a flapped polar curve of the ventus ct in
15m and 17.6m configuration?

I would like to have it because on such polar it's possible to find
out some speeds between the flap settings who have a pretty bad
performance, it's not possible to see that on a standard polar

Thanks in advance

Kind regards,
Decraemer Jurgen
Aeroclub Brasschaat (Belgium)