A friend has a new Hobbit on location in his business and after about 200 games played on it, the left slingshot plastic has broken in half. After I removed the broken slingshot plastic (which had swiveled around and trapped the ball causing a service call), I noticed the entire slingshot arm and pivot bracket had a ton of slop in it. It looks like all the slop in the arm caused the arm to hammer the plastic and break it in half. A new machine should not have slingshot kicker arms wearing out after just 200 plays. Sometimes the kicker arm gets stuck in the fully extended position and a ball hops behind the rubber causing a service call.
Anyway, I went to the local Ace Hardware and bought two "J-Clips" (a.k.a. speed clips) and slipped one onto the broken left slingshot plastic and the other onto the UNbroken right slingshot plastic as a preventative measure. The repaired left slingshot plastic also got a drop of glue to help hold it together along with the metal clip. The clip does help to reinforce the broken area.
I emailed this problem (and pictures) to tech support at Jersey Jack OVER A WEEK AGO and never heard back, so I am posting the problem here.