My technique is based on that of Stu Thorne, as he's pretty good at it - http://velonews.competitor.com/2010/12/ ... lar_151594
First thing I do is a layer on the rim, then while that's drying I do a layer on the tub. Then another layer on the rim, and another on the tub. Then I do one more on the rim, and then mount the tub. Pumping it up forces any excess glue out, which I then pick off once it's dried.
I do always put electrical tape around the brake track to make sure I don't get any glue on it, and apply the glue using a flux brush.
You shouldn't be able to "lift" the tub off the rim at all, when I put new tubs on it takes about 5-10 minutes with a screwdriver under the base tape and a lot of effort to remove the old one.
Edit: I should add that this process takes about an hour all in all...