Rusty
I'm not sure you should change the throttle range set. With your new settings you may not be able to arm or disarm the AQ. Raising IM gives more throttle change so your copter will react more quickly. I would not change to 800 till I tested with defaults. The default setting on the AQ work amusingly well. Much better than other flight controller I've used. All three of the multicopters I've built use all default values except for Rate D. The 9 lb octo, 4 lb quad with 15" props and a little 3 lb quad with 9" props..
Just getting the quad to hover at mid throttle stick position or 700 will most likely give you great altitude and position hold.
The hardest part for me to learn was to avoid changing from defaults.
Larry