i have heard there is a new spiral available from Mikes Work Shop that does not have the swisted ends, i have never used them, but heard they work really good, i am not a user of spirals for that very reason, the pain they are to straighten and then get set correctly in the blade clamps, ask mike to send you some samples he is a great guy and very knowledgeable of the flying dutchmen blades.
al toni and baby scroller