RE: epp V tail Jart ?
Great idea. I wouldn't bother with using coreflut (colorplast, fluteboard) for the tail though. Use 1/8" balsa covered with ultracote. Very clean and quite durable. It's what is used on the NCFM Moth and has proven to work quite well. Coroflute is draggy, heavy and ugly! Good luck with your Jart. Jim