Update on the H-9 gear. After some flights it was evident that it was way to stiff for the plane being that the Grasshopper weighs about 5 lbs less than the H-9 Cub. Remedy!! Did incision on booty opposite seam and removed one of the two springs on each side then, sewed it back up. It functions perfect now for the CMP Cub / Grasshopper Very flexible!!