Thanks guys!
I am in contact with the company as it is now. There is a flat spot of about 5 teeth on the main gear that is attached to the crank handle. It gives a slip when it meshes with the second gear. Not really a biggie but I'd like it to not be there. Yes, the spacers can be used, they looked really bad til I cleaned them up and dried them off. With some white lithium grease the runs very well, puts out good air, but that little slip is annoying.