I took delivery of my supercharger today .. it's a good feeling to finally have one in my hands :thumbup:

I found some light scoring marks on the lobes and I wonder if anyone can tell me if they look "normal" for a unit that's already done about 10000 miles...
Here are some on the edge of a lobe...

Here are some on the inner part of the lobes...


Apart from the marks it seems to spin freely and doesn't make any bad noises..