Having some VK and SR experience, you can tell the same people designed both. Wing is one piece and retract gear with the VK but they are darn close to the same wing. I would add the cuffs if I owned a VK. Hardware is similar. Fuselage configuration is different but similarly built. The materials changed some. The SRs are more of a configuration change along with simplicity. The VK is very complicated and time consuming, where a SR just requires a check. Cirrus tried to cook the books a few years ago and the creditors took note and made them straighten up.