Quoted from Collin:FYI, the lower playfully is notoriously problematic because of the stress put on parts in the gorilla assembly. If your shaft or plate in that assembly are worn, I can talk you through sources for a new one, as there's about to be at least one new option for repairing this on the market.
Please send all comments regarding Tsskinne's shaft via PM in the future. There are kids on this site man.
Sorry, please tell us more about this upcoming option. My Congo doesn't have an issue right now(knock on wood), but it's nice to know just in case.