It's not for-sure but I'm considering getting a pair or radarlocks plus some replacement lenses so I end up with BIP, Prizm daily, Prizm road, and Prizm trail. For the purposes of this inquiry, we'll use MSRP prices... Were I to get a radarlock path with Prizm trail ($240) and add replacements for BIP ($130), Prizm daily ($150), and Prizm road ($100), the total would be $620. But, were I to get almost-identical-frame radarlock path with BIP & VR28 BI ($300) and add replacements for Prizm trail ($100), Prizm daily ($150), and Prizm road ($100), the total would be $650. Sure, that's $30 more, but you end up with an additional VR28 BI lens, which, as replacements, go for $80. So it's like $50 in savings, apples-to-apples. And VR28 BI is a desirable lens. But, with Prizms daily, road, and trail, would there really be any use for VR28 BI or would it be redundant, functionally? What would you do? Save the $30 and exclude VR28 BI, or spend the $30 to get the extra lens for cheap?