I see on Defender and West Marin the whisker pole recommended for my O'Day 28 is a Forespar either ADJ7-15' or LC 10-18'. They (as well as Forespar) advise the 10-18 if you may encounter moderate to hear winds while sail downwind and the 7-15 for light - medium winds. the 7-15 cost $450 and the 10-18 cost over $1100. Hopefully both could store vertically on the mast. My furling Genoa reefed tight clew to mast measurement is 10'. Hate to spend $1100 on this. Thoughts?