Sorry guys,

Did not give quite the right info in my previous post because I replied from the place where I work. Measured everything now and this is what the incidences are:

given the stab is at 0
the upper wing is + 1/2
the lower wing is 0

for this setting I had to add a piece if wood of 4mm thickness between the foremost strut and the top wing and 2mm between the rear strut and the top wing. Did not made these changes to get a certain incidence but just to close the gap.

Hans