Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
The spinnaker would fit but you need a block at the top of the mast in front of the forestay for the spin halyard, block half way up mast for the pole topping lift, block in the foredeck for the pole foreguy. You need a way to set your spinnaker sheet blocks as far aft as possible (catbird seats?). You need a spinnaker track on the front of the mast for the mast end pole ring. You need cockpit winches for the spin sheets. You need all the lines led aft to jamb cleats or clutches.
All this makes it pretty difficult to fly a symmetrical spin on a C250.
Yes, standard genoa cockpit winches work, and that is all I have although I have some extra jamb cleats and cleats for using the spinnaker sheets at the same time as using the genoa. Bigger race boats have dedicated genoa winches and dedicated spin sheet winches.
Problem is, standard C250 does not have cockpit winches.
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.