So I called Yamaha customer service. Their in California so It was not too late to call and they told me the same thing the service bulletin only applies to Apex. Even though I told them it is the same part#. So they told me I have to take it to the dealer and have them call or e-mail Yamaha and tell them the shock is defective. My purchase dealers on the first and 2nd one are 70 miles away. Great customer service. Not! The nearest dealer 25 miles away last year told me 6 weeks to get an oil change. Because he can't find help. Maybe he should pay more than $20.00 a flat rate hour! So I changed my own oil. I would have bought from them but they did not have any in stock. I just wanted to document the oil change. Thank you again for your reply. But just because an Apex costs more than a Vector should not determine who gets this problem fixed. So now I have to load up the sleds and show the dealer that when the airshock is set to the correct pressure according to their owners manual. I can only get a 1/4" sag when standing on the rear of the tunnel and rocking from side to side. I have tried lowering the pressure only to have the track balloon and rub the bottom of the tunnel. I am very impressed by the build quality of these sleds. But they obviously did not do proper R&D on these suspensions. So can anybody tell me that their YES warranty did them any good? Would love to here from you before I buy one for my 2nd Vector.