"maybe someone who is successfully using this method can tell us a bit more about the timing of the attachment?:"

Honestly, it is subjective. But it depends what got2b product you are using as well. If you are using the freeze spray, you have to put on the unit very fast cause it drys very fast, and once it dries it loses tackiness.

I use the spiking glue. That too is subjective. Some put it on right away, and let it dry while the unit is on. Others wait a few mins. To me You cant let it dry too much before putting on the unit, because once the stuff drys completely it has no tack.. Its not like regular glue. I pretty much put it on my head, myabe wait a min or two than attach, and let the glue dry while the unit i s on.