Ahh, I remember seeing that happen with BP once; I didn't think of that. Although, wouldn't it be 1004 (998+6)? At any rate, that'd only increase the damage dealt by about 5 or 6 per fireball; a comparatively small amount, to say the least. Still a ways short of 32,767, at any rate. I oughta try out those other combinations some time...
Oh, and random fun fact I initially came here to post: "Supersonic" and "Percussion" are anagrams. That's probably the longest pair of one-word anagrams I've seen in quite a while, if not ever.