I too am wanting an "inner forestay", for storm sails, also for emergency if the main forestay goes...but I don't want to then have to set up running backstays...as I believe what goes in front must have equal balance behind?! I had thought of a removeable what I thought was "baby stay", but then a rigger said a baby stay was just that, a small stay to give support to a honking big mast with bend...and yes, is mostly on bigger boats? However, we should call what we want an inner forestay?! Either way, I would make mine removeable, and have the running backs removeable, of course, too. Someone told me our aft shrouds should be strong enough balance/support for a baby/inner forestay, but I would rather do it right, as per the law of physics (for each aciton is an equal reaction) than see the mast slowly go over the bow!
“You get a boat for only one reason, because you want one. If you’re worried about being practical, forget boats.”