DumbledOre: Why bother? Well, because some of us may be interested - as you clearly are, having taken the trouble to register and post. Oddly, your post did not appear, for me, at least, until this morning, hence my late response. I'm genuinely intrigued - you seem knowledgeable on such matters, yet I also detect the faint whiff of vested interest - perhaps in some other, proprietary technology?
Chugalug: C'mon - surely you know that the whole 'cloaking issue' is a classical technological arms race, culminating in the development of 'gravimetric sensor nets'?