Hi,
IMHO you should NOT set Landing Collective(H_LAND_COL_MIN) = 0, because it will go full negative collective on LAND. Usually Landing Collective should be around 300 to give you -3° to -4° collective (0 = full negative, 1000 = max positive).
Edit read: NOVAerial Robotics AC3.4-Heli Review and Issues List
I set Cyclic Travel (H_CYC_MAX) similar to a standard FBL, where you set 6° to 8° cyclic. Another rule of thumb is to get 75% of the 6° to 8° (=4.5° to 6°) using only the Pitch/Roll_FF (Pitch/Roll_P/I/D = 0 during _FF adjustment).