Seajet
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I'm sure you have taken down HANKED ON headsails on bigger boats in very strong winds. That is do-able - though the stronger the wind the harder it will be. In those circumstances however it is most unlikely you were going straight from a 150% genoa to a storm jib - by the time you get to want a storm jib you have normally long since changed the big genoa for a No 2 or 3.
If you plan to set off in gale conditions it is feasible and sensible to take down the roller genoa and rig a smaller sail before departure. Trying to do it in big seas and full gale or worse conditions is insane. There is a 90% probability that you will end up in worse trouble than before you started.
jwilson,
I don't recall the various asymmetric and conventional spinnakers, or tallboys, I have played with being hanked on; and unless something is badly wrong with your roller foil it should have much the same effect as hanks, but be quicker and easier to lower !
Just because someone does not agree with you that does not make them 'insane'; though I might compare your stated approach to Ostriches and Lemmings, re-read my mention of what happens on lee shores and have a think.