Wiz,

About the wingtips, I would like to say also that altough it's my idea to fit the DV with this style of wingtips, they aren't coming out of my imagination. This style of wingtips fit the SIG wonder and the BTE super flying king. Both of those planes are designed by Bruce Tharpe, I simply add the idea to ask Bruce to resize them to fit the DV

For some of my planes I builded them myself. It's a frustrating job, but it's not very difficult. With standard tools it's a one day carving and sanding procedure to make flawless ones