ORIGINAL: highhorse
Perhaps your nose gear is a bit too long? A slightly nose down attitiude will help "pin" it yo the runway after touchdown, preventing some of the bouncing you see when landing a bit too fast.
Just a thought.
Yes, I´m sure that the nose strut is too long but the problem is that I cannot unscrew the steering arm in order to shorten the leg lenght. I don´t know if the screw is in metric or inches but I´m not able to unscrew it with my metric allen. Anyway the bouncing happens even touching with rear main legs only, so I suppose the lenght of the nose leg is irrelevant in this case.
Thanks