I'll take a shot.
With Remote Thumbs, you have the option of choosing "all softcore, 2257 Compliant Thumbs" or "both hardcore and softcore thumbs."
Now, I'm *assuming* - and this *is* just an assumption - that since the thumb options are labeled "2257 compliant" the sponsors have the documentation waiting in the wings, so-to-speak.
So, again my assumption, TE, is that the answer to your question is yes.