RE: Newly redesigned WH Extra build thread
It is my experience that I am FAR more likely to get vaseline on the shaft of the hinge (thus ruining the glue joint) than I am to get glue in the knuckle of the hinge. I have never used a lubricant and never had a problem.
I discourage use of any oil until all the glue is dried, then you can put a drop on the hinge knuckle. YMMV.
TF