[RahX]

Hard acceleration will cut out the a/c to give the engine more power which is normal. There are no rules that govern how fast/slow an a/c system will leak refrigerant other than the most obvious, the bigger the hole the faster the leak. If it is not acting normal and you aren't sure if there is any refrigerant in there, have someone suck it down and see how much is actually recovered. When you charge an a/c system after it has been low, you aren't helping the situation 90% of the time. When you have a leak there is a good chance that air has entered the system. Air will not work anywhere near as good as r-134 and will cause abnormal pressures within the system which will cause it to operate improperly. Have someone suck it down, vac it and recharge it with leak tracing dye and see if that helps any.