So yesterday I was working on getting my Tron Pro's slings working a bit better and I noticed a few dark spots on the playfield. I was like what in the heck is that....
I then got out the cleaner and tried to wipe it off, it really did not come off that easily. At this point I a starting to get a bit worried about what the stuff was.
It turned out that I nicked the top of my finger on one of the sling leafs and I was leaving little blood dots all over as I kept on working on the pin.
Never had that happen before and I am sure it will happen again eventually.