Well, my 4 turned up in the post today - 8 days from America! Pretty impressive. I really hadn't realised just how small they would be. Tiny isn't the word.
Just done a test recording with my Takamine into SX3 (one mic, 9-10" from the 12th fret, pointing at the soundhole) and I have to say that I was immediately very impressed. The sound coming back off tape was pretty much what I was hearing when I was playing - the mic really captured the "bigness" of my Tak - a rich, full sound with plenty of detail (which would seem to back up the "it's an omni" statements).
On the downside, there was a perceptible amount of electronic interference - not so noticeable on heavily strummed parts, but certainly there on the quieter moments. I'd assume this is to do with the mics being unbalanced, so looks like I'll have to do a bit of modding.
Also, and a little disappointingly, one of the mics doesn't work - a 25% failure rate. Although, to put this into perspective, I bought a couple of GT55s a while back, and while I fell in love with them instantly, BOTH mics had to be returned as they both developed faults within a week of arrival (100% failure rate!). The replacements are still working fine, though, and the experience highlit the excellent service us Brits can expect when we order from the very wonderful Digital Village, (which is why I don't like buying from anywhere else. Don't even get me started about the E4K I bought from Turnkey...)
In short, these mics are a worthy addition to my ever-growing collection of mics and, when the price is taken into account (£15.58 for three mics including postage), there is absolutely no way on earth I can fault this product.
Of course, now I'm counting the days before I can put my order in at Naiant - if I'm this happy with the K-Micros, how chuffed will I be with a bundle of MSH1's?