I have a FC400 and have only had one problem with it. The modules had a rough spot from the machining process that was eating my cables. 5 minutes with a needle file, and it was fixed. I caught it before it did any significant damage to the cables. I am shooting 70#, 28.5 draw, 398 gr. arrow at 298 fps. It does require frequent lubricating of the cables where they pass through the TRG, but that only takes a minute or two. I have noticed that the more I shoot it, the less I am having to lube the cables. Maybe the cables are finally saturated, or maybe everything is finally smoothing out and fitting better. I don't know. As far as shooting the bow, it's a dream. Pretty quiet, fast, and a good weight. Took a bit of getting used to the newer, thinner grips, but once I did, I like them. Anything else you'd like to know just holler!
2006 Rytera Bullet X 60#---2008 Moab 70#
2008/12 Firecat 60#--- 2010 Warthog 70#
2010/2012 Alien X 65# 2011 Onzas 60 & 70#
2009 Warthog 70#---2009 Firehawk 70#
2010 Strother SR-71 65# & 2012 Strother Rush 65#
I hunt, therefore I eat. lol