I have a new (ish) fluorescent yellow riding jacket for sale, size large. It was bought in England a couple years ago as a gift, but is a bit too loose on me, so I never used it. Asking $40.00. Geoff. 519-351-4962, email reply, or see me Wednesday nights. Also, I have heard several people mention that they notice a difference between their cycle computers. Here is what I have experienced and may help others set up. I have a Sigma with wired pick-up. First, I set the magnet on the wheel only a couple of inches from the rim. ( not sure if this makes much difference as it only counts pulses) Next, make sure the tire is at correct riding pressure. The instructions will give circumferences for various wheel and tire combo's. FORGET these. You need to measure the exact circumference by marking the wheel and rolling forward 1 revolution, them measure carefully the distance travelled. I use the stem as a starting point with the stem 90 deg. to the floor. IMPORTANT !! From my experience, I found that miss measuring by only a couple of mm, makes a huge difference on the road. Make sure to enter this number correctly when setting up. Write it down for future reference if you have to re-set after a battery change. Also, I have noticed that if I don't keep my tires at 100 psi, which is what I set-up at, I get a very noticeable difference on the road. -10 psi alters the circumference enough to throw off your distance and speed. Obviously, these computers are subjective, we don't really care if they are balls on, but if you're like me, you like to think that the reading you're getting is what you're doing. Hope this helps. Geoff.