The front suspension of my '17 650 seems to be super-firm. I've already backed off the rear preload a couple of turns, and the rear seems better & fine now. But I have no idea how much, and on which adjustment, to tweak the fronts. My objective is a slightly softer ride. Most of my riding is on straightaways so twisty handling is NOT my priority. I weigh about 240. Any recommendations on how to tweak the front? TIA!