I was talking with Dave Folts the other day about that.
My idea is to build a true clutchless transmission, not just use faceplates to have a better/quicker engagement than when using pro rings.
I'd like to develop the idea of a split slider along with the angled dog engagements, like on a GForce transmission.
When taking with Dave Folts, he told me he's got a how bunch of CAD drawings and the biggest problem is the space to get it done, as it's already hard enough to get the faceplates in place