I have a JBL Euro 120 woody. I couldn't even get a straight answer calling JBL, but will tell you that standard American shafts work fine with it. I haven't even used the flopper it came with. Picked up a 55" 9/32 shaft from Benthic Ocean Sports so I could attach a 5" slip tip. I originally thought it might be too long, but it actually shoots spot on.
http://benthicoceansports.com/collec...hreaded-shafts