I have a 2009 hobie 16 and the same thing happens even with the plastic disk under the mast. I have to insert my plyers in the front between the mast and the base to pry upwards a small amount. This releases the bind on the pin and link. Basically lift the mast straight up with some kind of prying force. The base and mast have scratches from this but it works for me.
Fyi... I changed the step pin back to a smaller diameter last year.
Old links had many issues and in the late 80's I modified the links to be stiffer to prevent the mast from over shooting the step casting. Since the 3/16" pins were bending, I changed it to a 1/4"... causing the pin removal difficulty.
The pins are now back to 3/16", but are a harder grade of stainless. Replacement pins are #8020080 MAST STEP PIN, 3/16 X 2.125 SS (I believe they are PH 17-4)
