This one is pretty simple. The damping ratios for the gear were set much too high, I think they were concentrating a lot more on FSX at the time.


Its another [contact points] edit, change it as follows and the helo becomes much more well-behaved when landing:


[contact_points]
static_pitch = 1
static_cg_height = 7.75
max_number_of_points = 9


//--------0-----1------2-----3-----4---5---6-----7---8------9---10----11-12-13-14--15


point.0 = 1, 18.2, 0.0, -8.25, 2500, 0, 0.85, 50, 0.39, 0.75, 0.5, 3, 3, 2, 0, 140
point.1 = 1, -5.3, -6.8, -8.00, 2500, 1, 1.2, 0, 0.69, 0.75, 0.5, 3, 3, 3, 60,140
point.2 = 1, -5.3, 6.8, -8.00, 2500, 2, 1.2, 0, 0.69, 0.75, 0.5, 3, 3, 3, 60,140


point.3 = 2, -8.3, -8.0, -5.80, 2500, 0, 0.0, 0, 0.00, 0.0, 0.0, 0, 0, 5, 0, 0
point.4 = 2, -8.3, 8.0, -5.80, 2500, 0, 0.0, 0, 0.00, 0.0, 0.0, 0, 0, 6, 0, 0
point.5 = 2, -36.0, 0.0, 1.00, 2500, 0, 0.0, 0, 0.00, 0.0, 0.0, 0, 0, 9, 0, 0
point.6 = 2, 17.0, 0.0, -5.80, 2500, 0, 0.0, 0, 0.00, 0.0, 0.0, 0, 0, 4, 0, 0
point.7 = 2, -36.0, 0.0, 3.00, 2500, 0, 0.0, 0, 0.00, 0.0, 0.0, 0, 0, 9, 0, 0
point.8 = 2, 0.0, 0.0, 8.00, 2500, 0, 0.0, 0, 0.00, 0.0, 0.0, 0, 0, 9, 0, 0
gear_system_type=0



I also added some more stability by spacing the main gear a little farther apart.
You could also add the second wheel on the nose gear, and space them about 1>-1.5 feet apart.
Just remember to change the max number of points value to 10.