essentially here is what these settings do:
Deadband: Dead band settings will affect how much input is required before the control surface moves. a high setting will make sloppy sticks less jerky. if you find that keeping a steady nose for gunnery and ACM is a problem, play with deadband.
Damper: again, with sloppy sticks, a higher damper setting will limit the 'over steer' problems in pitch and rudder. If you find that in high speed turns and climbs you're unstable, play with the damper.
Ack-ack's stick files are very usefull. If you find they dont work for cheaper sticks with low resistance, try playing with these settings:
Roll: deadband set to 1/4, damper just under half.
Pitch: DB a little over half, damper, just under half.
Rudder: DB 60% up, Damper just under half.
I have a POS stick (cheapo saitek) and have found it to be almost useless with out some settings changes. 'nose bounce' is a big problem, 'rudder snap stalls' are also trouble, especially when pulling hard back with a twisty stick as its very hard not to input s a little rudder. roll is less effected but it still needs tuning to get the most out of AH.
Oh! and as mentined already, STALL LIMITER must be OFF!