Northstar Help

So, now I have one in my own hands, I have some questions.

Should the axle be able to move vertically while unscrewed?

Should there be a occasional vibe?

It was very hard to unscrew the yoyo as when I got it, after I unscrewed it it gets tight a inch before the arrows meat.

And, should I thin lube the bearing with just a needles worth of lube on on ball.

How long until the bearing breaks in, and how much occasional play each day until that happens.

Thanks in advance :stuck_out_tongue: