KISS the baby(stay) goodbye?
Thanks, Paul, for the very clear reply. I had not considered the effect of a baby stay on spinnaker handling. My initial thoughts were that perhaps a baby-stay (as opposed to a more forward, cutter-like, inner forestay) that was JUST big enough to fly the #4 could be attached at the hounds (thereby avoiding running backs) and far enough aft on the foredeck (forward edge of cabintop) to not be too interfering when tacking the genoa. The thought was that this would be rigged as a permanent stay, thereby avoiding the greater expense, rigging time, and clanking around when not in use (as you mentioned) of a removable stay. But maybe this is not such a hot idea after all.