Drive shaft install confirmation

[ptscon]

First time re-installing the drive shaft on my RXP, looking for confirmation that I got it in far enough. There was a tiny grove in the shaft, which I think the manual uses as the indicator, which is no longer visible. I think it's good but want to confirm, can't spin the shaft so the splines must be engaged.

Also, I was replacing the bellow parts, top hat/cclip/boot/carbon, and wonder how loose the cclip is supposed to be on the shaft? I got a new one, it went on pretty tough but once on I could spin it by hand around the shaft before the top had was released onto it. Is this normal?