I went to Ride Science at the recommendation of some of the fastest local riders. I'll admit I was less than optimistic that a fit could be worth $275. It was! My wattage improved, my efficiency improved, I'm much more comfortable in aero, and my avg mph improved almost 3mph over 100 miles! I'm finally riding respectable times. Mark's attention to detail was unbelievable. He didn't quit until the fit was perfect. He gave tips on how to gain efficiency and wattage. In a sport where we'll spend ridiculous amounts of money for small increments of improvement, this was without doubt, the best money I've invested into the sport since buying my bike! Can't recommend this guy highly enough. If you're considering getting a fit, use Mark at ride science. He's brilliant, he busts his tail making sure your fit is perfect and you will improve as a rider no matter your skill level.