Re: Be careful with new coconaras....
I really like the small coco's. I place them in from the edge of the bowl just a bit and haven't had any problems with them falling off of the bowl, even when the darned dog bumps the hookah. LOL Placing them in a bit hasn't negatively affected the moassel cook, either. It works for me, might or might not work for you. But I can certainly see how they could have a tendancy to roll off the edge if you place them near the edge of the bowl, especially when they've burned down a bit and the edges have rounded somewhat. Smoke happy.
Al Fakher Large Solid and a bowl of DM . . . life is good!