I agree they released a good head and it can make the kind of power that is suitable for stock block builds...I just personal just don't see them going any further into the SBM world, most of the people building these engines don't seem interested with the extra costs/hassles of offset rockers and maybe porting an intake to match.
I would still be really curious as to how many sets of heads they have sold to date for the SBM...I personal still have yet to lay eyes on a set