XX1/X01 vs. 1x10/1x9

[brmeyer135]

Getting the weight of the above 400.00 mixed set
X9 der           240g
1031 chain     277g
X9 shifter       116g
crank             870g  best I could find included the BB
cassett 1030   395g

weight total   1898g

price is great....weight is heavier...performance:  unknown but doesn't match range

[Carbon_Dude]

can you grease the jockey wheels or open the derailleur itself and grease in there.
There is/was a thread at other site on problematic XT clutch der. and how one takes them apart to grease them.
No threads on XX1 der. creak?

I think I narrowed down the problem to a bit of play in the rear axle assembly.  I snugged things up a bit and everything seems to be good.  I did not get the r/d to creak/pop while riding around my neighborhood but the real test will be back out on the trail.  Some people have reported that it is a real PITA to correctly reassemble the clutch mechanism and since SRAM is saying it's not meant to be serviceable, taking it apart would be a last resort.  There are DIY's on the subject though.  Even though the sound seemed to be coming from the r/d, it did not make sense that I would have the same problem on a 1 year old part and also on a new part.  I'm hoping that it's now taken care of, I will report back after my next ride on the IP-057.