I was hoping to ride the Continental Grand Prix 4000 S II Tubular (not clincher), but have received conflicting information. One LBS says that the tire will not be available for 6 months (Jan 2015) in the US. Another says that the model name caused confusion and that Continental renamed it the 4000 SR (I had read on a different post that the Grand Prix 4000 S II Tubular was improved over the 4000 SR and had replaced the 4000 SR). Both LBS say they cannot currently obtain the Grand Prix 4000 S II Tubular. Any clarification would be appreciated. Thanks