Yes, i bought a thermometer and boxer briefs and have been practicing with water. I would fill it with about 105 degree water and plant the condom where it would need to go. I would test it about about a half hour later and it would be between 95-98 degrees. (The test was when I was wearing boxers too, so it should be even warmer when I wear boxer briefs).

Anyway i'm setting up for the real thing now I'll let everybody know how it goes when I'm done.