Not a HH owner but BH which is the same family. I purchased totally dead some 15 years ago and have only had one problem that I caused myself. That said light bulbs and rubbers only for a long long time.
I think if a shop sells you a pin you should get at least a thiry day warranty.
I think any pin can have problems and depending on how many chefs were inside of it you never know. And after seeing the FL business washing pf with a garden hose. Purchasing from distributor means not much to me.
You would be better off getting references of the folks you may be buying from.