I have used the G6 since January. I swim/ aqua jog/tread water usually between 1-2 hours daily. I have had some issues with the adhesion, but (FINALLY) was able to secure the adhesion patches, and this has helped so far. I am not allergic to the adhesive, but generally end up with a nasty looking red ring and bruising around the site when I remove the sensor pod. Not painful, but bruising lasts beyond the ten day pod replacement time. I have had people remark about this in the locker room. Does anyone else have this problem?