I've always strapped one on since I had it but there are several times I just forget to put in the gear bag or simply recharge it. What I've noticed not using one is I tend to sail not furiously to reach the personal bests but really enjoy going on different reaches and not be reminded how many km's, ave. speed , etc.. The end result to this I end up sailing on the same lines as my other mates who don't use one and tends to be fun. Anyone who has the same feeling or is it just me using too much of it!?!