A few days ago, when I mounted the VS, I ended up with a slightly out-of-round hole at the bottom of the tailwheel weldment. Today, on the advice of Van's tech support, I drilled the hole out to 3/8" and installed an AN6 bolt. On the advice of several other builders, I also drilled an additional 1/4" hole above this and installed an additional AN4 bolt.
Inside view of the "fix." The bottom bolt is now a big, honkin' AN6.
