Symptoms from precum have also been very difficult for me to deal with. The effect seems to be relatively inconsistent. Prolonged intense arousal (>20 minutes) with substantial precum release is typically, though not always, equivalent to a POIS reset for me. With shorter arousal, its a coinflip. There have been times in the past when even one or two minutes of arousal have led to POIS. It's all very frustrating. Fortunately, I am extraordinarily lucky to not get wet dreams.