I'm torn on Paris Roubaix. He's the best TTer in the world right now and I think the best TTer in the world should give PR a shot. Maybe he's not ready to win it yet but it's the kind of race where he can use the experience if he wants to be a contender in a few years. But man I just really don't think he's gonna have a great time there. I don't think the weakness that he will have one the really rough cobbles has been exploited today. The way the race went was kind of convenient for him, where everything was kinda calm pre Molenberg, then he made the split on the Molenberg, and it was kinda calm again until the 2nd Kwaremont at which point the finale was already starting.
In Roubaix, even though the race might be just as selective as a whole, there is no one sector as selective as the cobbled hills in RVV. Maybe the group he's in will be quite small with 100km to go again, at which point things like positioning become much easier. But even then that means he already has 70 kms of constant fighting for positions and riding on really rough cobbles in his legs. I mean, as long as he manages to stay upright on the cobbles he should still be able to get a decent result, but I just can't see him being as comfortable there as he was in RVV.