you aren't wrong, i think they are sliding back
to the old reliable cable rod & slide. the roller guide you refer to martin calls it css. i just got through converting my 3 alien xs to the cable slide system, i built my own! you can't believe how much smoother the bows draw, not as smooth as the onza but eaqual to the nemesis. and just about eliminated all the limb twist and cam lean. on 1 bow the cam lean was so bad i was almost afraid to shoot it for fear the bottom cable would run off the cam, which is just like a dry fire! on this bow i switched the limbs ,top to bottom bottom to top. i couldn't believe how strait it made those cams run, it is the best shooting bow i have ever shot . i also built a device so i can draw my bows all the way thru the whole draw cycle one click at a time , i can stop and look at the cams & see what they are doing, can also set my drop away rest just perfict , can also check the cam timing
cutis
2009 alien x camo, 09 x all black , 2010 x carbon fiber
2010 nemesis camo, 2011 nemesis carbon fiber,
2010 onza 3 camo,
2010 pearson legend black riser camo limbs