Good idea!!
Do you have any burn scars yet?
I've avoided them .. so far.
Not yet but it's early.
Seriously though it's the method of extraction I find safer, not necessarily the chemical used. A) The amount of flammable liquid used is considerably less. B) If there were an ignition the explosion force would follow the path of least resistance- the PVC ends. Make sure that they are never pointed at you and possible risk is lowered a great deal. C) Using the double boiler method and hot water no electrical appliance is needed to cook off the butane.