Hello everyone. As we are approaching the race season and round 1, it is important to avoid any potential issues with timing to make sure your transponders are up to date and have the latest firmware on them. I learnt this down in Utah a couple weeks ago when my transponder was not picking up. Also don't forget to give them a full charge!! A side note. Anybody last year who bought the x2 tansponders with the direct charge kit (through the group buy), I had them send me their "fix kit" for the recall issue they had last year.