Here's one of the videos I've done - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ipQxbRMAoPI.html. Not too much has changed since I made this video. Some of the personal gears will be better if you upgrade them enough, but it cost alot of nuts so I don't have very many equipped. Thanks
So I thought it was a bug but it appears the devs backtracked the decision (possibly because the game is very money orientated) possibly could get implemented again at some point though fingers crossed