@cloudhand I'm having good results with the 7JPN x Moruga cross as well. It needed that extra cross for flavor, imo. I'm going to try to cross it with a donne sali this year to decrease the size (I want small, compact plants for my aerogarden) and genetic diversity. It's too bad the Chunpepe is a cross but I really think c.chinese can improve c.frutescens (haven't tasted any good cultivars). Perhaps these kinds of hybrids could be a bridge for c. eximium. Also, it's interesting there are no germination issues since c. chinese and c. frutescens hybrids produce partial fertility. Perhaps it's more generations than we think.
Edit: any pics of the 7JPN x Moruga F5?