thanks for telling us your exp I always get fascinated when I hear unusual communal stories.In my experience, any of the forest scorpions (Het's & Pandinus') could be kept in the same enclosure if they are all relatively the same size (mine were all 4 - 4.5 inches long). I kept an H Spinifer, 2 H Longimanus, and a Pandinus Cavimanus, of equal size in the same terrarium for several years with no incident (well, the cavi was 1/2 inch shorter, but he made up for it in claws). There were a few scuffles when they were first introduced and determined territory, but after that no issues. I kept everyone well fed, but none of them were fat. Everyone says they kill each other, but I've only seen that if the scorps were not of similar sizes (happened to me when I first got a few Scorpio Maurus Palmatus in the same dessert enclosure..at that tiny size 1/2 inch is a huge difference and the larger one's promptly ate the smaller ones while I was at work..that sucked..and quite a few caresheets said they were communal).