hi Richard, thanks for quick reply, much appreciated.
It makes perfect sense, that 25mm flap, would be more lift enhancing than drag , so hopefully more flap, will slow her down.
the belly speed brake is there and actually connected, BUT did not apply as dont know what to expect from that deploy, Up pitch or DOWNpitch, what did you experience?

I still think that this SM model can sloooowww down much more, as wing profile works for design.
Can you also tell me, what was your length of Oleo damping, only with the oil in oleos, somewhere i read, 10mm ?

How is your model flying