Go to the Van's website and click on "Information on Specific Models". The wingtips on the Rv-8 and RV-7 shown are the sheared wingtips. The ones shown on the RV-4 are the original style. They are interchangeable among the -4, -6, -7, & -8 (and maybe the -3). If you want the nav/strobe light inset under a plexi cover, the sheared wingtip comes standard that way, whereas the original must be modified. As far as I know, no performance advantage is claimed for either, so it's primarily a styling choice. The original, however, does have a tendency to get wavy on the large flat upper surface. I'm planning on a bit of foam laminated in to combat this.