I see nothing wrong with it. In fact, I would recommend having a colonic midway through too...psyllium can be a nasty bugger of a clogger if you take too much.

I'm on day six of the MC...I'm not doing the PB, but I am doing enemas once every 2 or 3 days, depending on how I feel. I prefer them to the swf. I also take cascara sagrada on those challenging days.