Hi Derek
It seems to me that there is not a great deal of point in trying to ID the Reimers mystery peppers as they are most likely to be the result of inadvertant crossing and are therefore hybrids...They look fun nonetheless, but unless you save seeds and grow those out and they end up being true to the parent (mystery) type you cant be sure what they are.
With Reimers reputaton being what it is I would put them down as being the product of bad seed growing practices rather than seeds being mixed up during handling.
let us know what they taste like...they sure look tasty.
All the best
Guy