Sometime during the past 5 years Happ has changed out the header on the 49-way joysticks from a .156 x 12 header to a .100 x 12 header. We have always had the 5 foot unterminated replacement harnesses for the WMs & Happ original 49-way sticks & we'll now offer the harness in the new version. It'll be up to you to determine which one you need. I've placed help hints to guide you in the pic above. Happy Gaming...