Sounds like you've got a plan. Sometimes its easier to wear 2 pairs of shorts to hold the quickfix in your crotch. I use to sew an inside pocket into all of mine because I was randommed all the time.
If when you dump the quickfix into the collection cup and its a little low, rub your thumb against your clothes for a couple seconds and then place your thumb on the temp strip on the collection cup for a couple seconds. When it hits 98 walk out of the room.