I had the NR-950 Deluxe for a full year. Great bags. Only down note is the rain covers may come off on the highway if you don't secure them. You can not put the bottom piece in and they vary in size or put it in to hold the shape. Great bags. I would go with them again if I didn't have hard luggage now.
There is a trick to getting the stiffeners in the Nelson Rigg bags... and there is now a band that holds them down in the middle... they say they make them slightly larger as the bag stretches a little when it is new and if they didn't the inserts would be a little too short... once you get them in they hold well... Perhaps the NR-950 was different than the CL-950 (or older CL-950 if that was what you meant)
My rain covers have a cord in them that cinches up around the back side of the bag... I usually loop the tag of the cord through one of the other straps in case it comes loose.
The trick with the stiffener inserts is to thread them through the bottom strap... then get it in the deeper pocket first....(1 side is slightly deeper at the top) then holding it in the pocket you push it into place along the bottom ribbing... stretching it a little as you push down on the bottom... the key is to take your time... and if it seems like it won't fit.. try that insert in the other bag...
I found one of the stiffeners slightly shorter than the other and fit better in one of the bags... it was a bit too tight when I tried it in the other bag...
but that is typical of chinese sewing but they did fit....
You don't really need the inserts anyway... unless you carry heavier things or next to nothing in the bag...