Well if no one else will answer this I guess I will. I think the reluctance to answer is due to to so many variables. I guess you would be ok as the flush isn;t going to hurt the plant. Chopping some colas probably won't either. Msy have some shock issues though and that is hard to predict. Consider the worst case senario and act accordingly. Sounds like a judgement call to me and you probably know as much as anyone as I don't think many people are doing this on a regular basis. Good Luck