I have a set of Zipp 404 Firecrest wheels on my TT bike. Love them! I now have new road bike and I am looking to upgrade the wheels. I would love to go with a set of Zipp 303 Firecrest given the new release and lower price point; however, the rims are hookless and not compatible with GP5K. I know people who are riding GP5K on their new 303's, but that is tempting disaster. I have been on the scene of a high speed crash and I don't want any part of it given the factors I can control. So, in light of the fact I have a preference to GP5K tires, what recommendations do you have assuming you have ridden a set of Zipps and now prefer something else that will handle GP5K, preferrable 32mm. TIA