I spoke to Gene today about a request from someone overseas for a version to fit on a S&B scope (non-threaded eye piece).
He said they have a prototype in hand of a version that uses a rubber sleeve to hold the lens and fits over the eyepiece. It should fit eye pieces from ~1.4 to 1.7" in size. As an added bonus, the rubber will cover the edges of the metal lens holder so as to protect the user from scope cuts. Expected availability is some time in October, perhaps as late as November.