Control stick
I remember having a hard time getting the wire through the stick. I think it took me about 5 attempts to finally get it all the way through. You might try some lubricant, the same as what electrician's use for pulling wire in conduit. I used .035 " safety wire for the fish, the hard part was the actual wire. It's "stickier" than safety wire. Seem to remember something about the plans suggesting ingesting an adult beverage of your choice and trying again later. Maybe that was in a different section of the plans, but it applies here as well. You can do it!