I used to run spin sheets outside the lifeline but converted to inside a couple years ago. The twing coordination is much easier. Twings are run back on the cabin top so one person can both release and pull in opposite side twings from the center of the boat.

This summer I mounted padeyes about 3 inches behind and 1 inch outboard of the shrouds to put turning blocks for the twings, thus giving a better angle to pull the spinnaker pole down. They used to be attached to the stanchion base aft of that position. I have found that there is no need for a foreguy anymore unless the wind is really blowing. I wish I had done that years ago!