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I can appreciate the proper method to change fork oil is to remove them. I have done it that way, but it's a PIA especially on the early Sport where the absolutely everything up front mounts to the triple clamps. So, I thought I would be creative while the front wheel is off for a tire and open the forks on the bike, siphon out the fluid, cycle the cartridge and give it some fresh juice. I knew I wouldn't get all the fluid out this way (or sediment in the very bottom), but I figured it's better than no fluid change at all and thought if I do it more frequently, it's going to add up. I was disappointed that the refill to 100mm air gap was only about 200ml. After doing the compression side I measured the recovery volume and see more like 300 ml . . . So, first, I'm afraid the oil level is going to drop as the forks cycle (?) And, second, instead of using a tube inserted in the upper housing (about a foot/ 310 mm), can fluid be siphoned out through the cartridge rod thereby getting nearer the very bottom of the reservoir?