As a rule, Ill charge 2xC and discharge 1xC. (C is capasity) So for a 3300C my max charge would be 6.6 amps, discharge 3.3. Smaller cells(transmiter, reciever packs) Ill charge .5xC.
Set peak detection at 7mv to start with. Higher mv is less sensetive, lower is more sensetive at detecting peak. If charger peaks and batteries are hot, try lower mv like 5 or 4 mv. If batteries dont take full capasity and are cool to the touch, raise Mv.