I've settled on the alu hoop and dacron tapered bag snuffer. Simple, light and reliable. Mine came from Landenberger Sail in Germany...back when they were pretty new to the market so no US sources. Paid ~$250 USD shipped. This one has a milled slot around the alu hoop for a bolt-rope to hold the dacron. Makes for a very clean transition. Select dacron over mylar since a wet sail will adhere to mylar with more drag than to dacron.