I have been using them for a couple of years now and I just love them!
At the moment I have six of the little blighters ready to go depending on the situation.
Two white Ms1's for hiding under buttons (I carry quite a huge selection of buttons now so as to avoid cutting the spare ones off clothing) A silver grey, Pearlescent White and two black Mits 2'S which I have used extensively on cooking shows.
It is really worth buying the wind socks for them again as you can colour match the cover to the talents fabric.
For anyone who has tried to mike anyone up wearing a wet suit will have probably been tearing the hear out, not a problem with a pin mic but be prepaired to stop the talent about every five minutes if it's wet as water starts to wick up the pins so you need to pull the microphone capsule off dap the pins with a dry cloth and put the microphone head back on. It only takes a few seconds but it's the only real problem I have had apart from raid drops hitting the microphone head square on with a huge thud.
Clothing noise, What noise? as for fabrics really close weave silks be careful! generally hold the back plate and wiggle the pins through the weave of the fabric. Once you take the microphone off give the fabric a quick rub and a pat down with some gaffer tape.
Some fabrics take up to 24 hours to recover or a wash I have a cotton shirt here which has had pin microphones just stuffed through it all over the place and to look at it you would never know the way I have abused it.
Ricsonix has now also developed a Button Microphone which has a flat back with a machined recess that sits over the button and a tiny parabolic dish on a 3mm stalk on to which you attach a second button to hide it. Sounds funky but it works a treat.
The guys ar Ricsonix www.ricsonix.com are coming up with many new and innovative products all the time. If only they would keep their web site updated as quickly...
Expect some new products out soon which will rock your world and make the industry sit up and go what the bleedin elle.
As for mixing in with other microphones... well it mixes really nicely with the Cos11, Tram but generally I use them on everyone so no real issues there.
If your thinking of buying one take a friend and your sound kit along get a friend to put one on and jump up and down vigourously like they were doing aerobics. If nothing else it will give the staff in the shop a good chuckle but you will be surprised how clean the sound will be considering how the talent is reacting.
Due to the shape and design of the back plate you can use these as placement microphones. Try sticking one on the back of a rear view mirror of a car you will be surprised. Have fun and play with them, these microphones open up a whole new way of working which keeps the grey matter chugging along nicely.
Cheers
Nige