I believe that Corbin had actually sent out seats for the 07 SERK that did not have the correct base. If you flip the seat over you should see some etching in the base of the seat. This writing is also included on the tags that are under there. Anyway I don't have my seat in front of me but there should be writing that says something similar to 07 CVO RK. There was a big difference in the height and contour of the nose of the seat between the first seat Corbin sent and the second one.
You are correct, I had received 4 incorrect seats from Corbin, I paid for the return shipping each time, when I received the credit 5 months later, it was for 1 return (shipping costs) not 4. However, I was told, I would be contacted when the proper seat was ready to ship and I would have the unreimbursed shipping charges deducted off the cost of the seat along with my10% Sturgis discount. When I read FLHRSE3 Group members were receiving seats from Corbin, I contacted Corbin, told the CSR to look up my file, and send me out the dual tour seat. The CSR contacted me later the same day to informed me Corbin would give me the 10% discount, however, I was not going to receive the $108.63 in out of pocket shipping. This is why I will never offer Corbin as a viable option. Next time I go to Hollister, CA I will file a claim via Small Claims. Corbin Is Dead To Me!