Aha.........even the smallest of scorpions can give you a pretty good sting....
I didn't grow the Cayanetta this year but the past few seasons they produced short squat size plants.......the chili's almost touched the dirt. How are those plants growing for you ?
The Tepin should produce indoors for you under ample lighting. I grow either the Mini Thai's or the Amish Bush indoors through the winter and have chili's to snack on.......they don't need to ripen for a one hitter
The De Arbol x Pequin sounds like a winner. ...Dam, if only I could find where I placed them, I have seeds from AJ (Alabama Jack) that are a cross from a Pequin x Serrano.........called a Pegrano. I pickled a qt last year, very similar to the mini Serrano's that they process here and call "Sport Peppers".
Best of luck with the rest of the season..