If it's an hour punt where I intend to pop twice then no, as I generally find that two pops of any kind is enough for me in a day.
If it's a half hour punt, therefore a one-pop job, then I sometimes will, but I've found it has to be as close to the punt itself as possible, otherwise it actually makes things worse. I'm not even sure it has that much to do with it to be honest, as I've had times with both WGs and civvie girls where it's been ages since I've last shot one off and I still manage to last for a long time. Usually it's more to do with my physical condition (if I'm tired, a bit under the weather, or even if I'm drunk) than anything else.