This replaces the C185 contact points in the aircraft.cfg of Amphibian. Please BACKUP the aircraft.cfg and then replace the contact point section with these and test it. It makes the floats float more level (without the tails so deep in the water AND gives it a more effective water rudder. If you don't like it then replace the aircraft.cfg with the backup and you'll be back to stock. Let me know what you think of it.
[contact_points]
static_pitch = 2.0
static_cg_height = 5.5
max_number_of_points = 15
gear_system_type=0
point.0 = 1, 3.4, -4, -5.87, 2500, 0, 0.344, 40.0, 0.032, 30.75, 0.7, 5, 5, 2
point.1 = 1, 3.4, 4, -5.87, 2500, 0, 0.344, 40.0, 0.032, 30.75, 0.7, 5, 5, 3
point.2 = 1, -6.8, -4, -5.65, 2500, 1, 0.57, 0.0, 0.13, 2.06, 0.8, 2, 2, 2
point.3 = 1, -6.8, 4, -5.65, 2500, 2, 0.57, 0.0, 0.13, 2.06, 0.8, 2, 2, 3
point.4 = 4, -2.00, -3.80, -4.50, 1650, 0, 0, 0, 0.3, 0.1, 0.9, 0, 0, 3, 0, 0
point.5 = 4, -12.00, -3.80, -4, 1650, 0, 0, 0, 0.3, 0.1, 0.9, 0, 0, 3, 0, 0
point.6 = 4, -2.00, 3.80, -4.50, 1650, 0, 0, 0, 0.3, 0.1, 0.9, 0, 0, 2, 0, 0
point.7 = 4, -12.00, 3.80, -4, 1650, 0, 0, 0, 0.3, 0.1, 0.9, 0, 0, 3, 0, 0
point.8 = 5, -16.30, -3.80, -5.80, 1650, 0, 0, 50, 0, 0, 1, 2, 2, 0, 0, 0
point.9 = 5, -16.30, 3.80, -5.80, 1650, 0, 0, 50, 0, 0, 1, 2, 2, 0, 0, 0
point.10 = 2, 2.5, 0.0, 1.2, 1600, 0, 0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 5
point.11 = 2, -4.3, -16.8, 3.5, 1600, 0, 0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 6
point.12 = 2, -4.3, 16.8, 3.5, 1600, 0, 0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 4
point.13 = 2, -21.3, 0.0, 0.6, 1600, 0, 0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 7
point.14 = 2, -20.3, 0.0, 6.00, 1600, 0, 0.00, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 7