just maidened my cougar last week,using a swiwin 60 for power,19 pounds take off weight with fuel ,flew off grass kind of a long take off run
but once it was airborne accelerated rapidly suprising how fast it was,handled like a trainer landed like a breeze with good nose high approach no bad habits
also very good slow flight manners.
will be shortening the nose gear as the nose high stance burned all the grass at the field ,you could see all my taxi and take off path with scorched grass.
to all those reports that it wont fly on a 60 it proved them all wrong