Behind mast roller reefing
I have used a Dutchman system on 2 boats over a period of 13 years and was extremely pleased with it. Except for an in mast or in boom furling systen I can''t imagine a better system. Lazy Jacks tend to hook battens on a regular basis and I think a behind the mast system would compromise performance to an unacceptaqble degree. Especially pointing ability. A Dutchman system with a good low friction single line reefing setup like Harken''s kit is the way to go for easy mainsail handling.