[chaddurbin]

mike--i started out blowing the back of the white cardboard but got impatient...so then i aimed for the edges of the actual postcard. i put the heat on medium and it took slower to peel...so i just put it on high to get the job done asap. i figured if i put it on med the pc will be exposed to the heat flow longer but not as hot...if it was on high there'd be more heat but for a shorter duration (so it was a wash in my head). ymmv tho with the adhesive used and cardboard type.