To be clear, Will was the seller, Will is Woodfield GCP....(?)..his banner appears on this site's head..he is a RFD..and I assume a gunsmith.
No one had the gun apart other than him..and that was after the problem presented itself.
The problem was with the gun not anyone fiddling with it..
As an aside the warranty is nice to have and Umarex have responded wonderfully but the law of the land says that we the consumers are entitled to goods fit for the purpose and of reasonably satisfactory quality. If they are not then we can reject them...
I think that trumps a warranty...