There's a great thread here on how to detail strip the VP9:
http://www.hkpro.com/forum/hk-reference-library/205189-how-detail-strip-vp9.html
I'd recommend stripping it down to whatever level you are comfortable doing and might as well polish the "hump" on the disconnector while you're in there. I have found that the VP9 runs best nearly dry, it doesn't need to have a lot of lube in it. Especially with all of the little springs and recesses in the frame, there are a lot of places for excess lube to collect and gather grit. The first time I stripped mine completely down to install the Lobos trigger after several thousand rounds, I was amazed and how dirty some of the deep down internal parts were. Now I detail strip it every couple thousand rounds, check everything over, clean, etc.
Also, everything will smooth out with more rounds as well, couple thousands and you're just getting started.
http://www.hkpro.com/forum/hk-reference-library/205189-how-detail-strip-vp9.html
I'd recommend stripping it down to whatever level you are comfortable doing and might as well polish the "hump" on the disconnector while you're in there. I have found that the VP9 runs best nearly dry, it doesn't need to have a lot of lube in it. Especially with all of the little springs and recesses in the frame, there are a lot of places for excess lube to collect and gather grit. The first time I stripped mine completely down to install the Lobos trigger after several thousand rounds, I was amazed and how dirty some of the deep down internal parts were. Now I detail strip it every couple thousand rounds, check everything over, clean, etc.
Also, everything will smooth out with more rounds as well, couple thousands and you're just getting started.
