Vdp is the greatest puncheur of his generation especially in a low kilojoule day like msr its difficult to drop him where as in Roubaix you can make it an attrition race by opening the race early. At least roubaix is the hardest race of the twoYou can definitely have more control of the race in PR than MSR, but for Pogi specifically MSR still have gradients and here he will very often have an advantage over his closet competition. I'm fairly sure PR has never been won by a rider under 70kg if what I have been told is correct. So dropping MvdP in MSR is definitely not the same as in PR. The advantage will in some respects go the other way.