Mountain Airframe has a stretch form for a right lower cowl skin, but not the left. This is Del's attempt at making one on the english wheel. It didn't quite suit him, so he used an extra one that Paul Wood had, and patched the exhaust hole. My airplane will have Bartone exhaust and will not need exhaust holes in the lower cowl.
Del did tell me that he wasn't going to charge me labor for his practicing on the english wheel!