Wet the tyre and stud.
Hold stud with needle-nose pliers very firmly.
Angle one side of the 'mushroom' head into the hole, twist and push in firmly. Pop, in she goes.
Ta muchly.
I've just moved 11 studs from the outer tracks to inner tracks, in probably about that many minutes.
Regarding wear, mine have done about 2500 miles; I left them on for the whole of the first two winters, so I didn't have to mess about swapping. I have since switched to a two-wheelset bike and only ride them when necessary. That said, I think I've probably lost most of the studs not on my main commuting miles, but on extra trips where I didn't know the potholes and got caught unawares. And once when I let the pressure get a bit too low without noticing.
The studs are now looking a bit rounded. The rubber of the tyre itself is bizarrely mint-looking. I haven't had the chance to test the slightly worn studs on decent ice this winter, and would like to find out how much effectiveness has been lost without hurting myself at some point.
No punctures, as far as I remember...