I have an E and just took off the shock to send it to Race Tech. This is the first time that I have done this with any bike and I noticed that the swingarm has some resistance to it when pivoting it up and down. Is this normal? It makes since to me that this should move effortlessly and all resistance should be the job of the shock. There are no grinding noises or anything else to make me believe that there is a problem. Anyone know about this?