went out and bought a hank on factory jib in 2004,put the furler and jib and gennie in the shed,seems much easier to trailer and rig,have a downhaul and jib and main halyards led to cockpit
What I really want is a "solent stay" - an inner forestay which connects to the mast very near the regular forestay, and connects to the deck just behind the regular forestay. This provides a way to use a hank-on sail at the same time you keep the genoa roller-furled. When not in use, the solent stay is disconnected from the deck fitting at the bow and re-attached to a deck fitting on one side near the upper shroud, where it will not impede the tacking of the genoa.
This would allow keeping the convenience of the roller-furled 150 genoa for most of the time, but being able to hank on a 100 jib for heavier air or beating upwind when you really need it.