The toy's detail and box were nice, but the overall quality was still KO. The chrome was fairly well done, although a section of one wing/rib was not completely vacuum metalized. The joints were tight, but the dino mouth was not aligned and the head was slightly crooked. The paint job was poor (both die-cast and robot face), and the accessories were vintage KO -- particularly the rocket launcher.
Oddly enough, they added springs to the rear dino legs where originally there were none? This made the legs snap firmly into place when in robot mode, but had the negative effect of forcing the legs outward at an angle when in dino mode.
A real easy way to distinguish a genuine G1 Sludge from a detailed KO, even one that's boxed, is to look for the where the factory applied labels should be on the chrome wing/rib. The KO Sludge does not have these small labels. The KO mold also does not have the indentation for the factory applied label located on the dino rump/robot leg, although this is hard to see on a boxed item. (see comparison below)
G1

KO

G1 Factory label on wing/rib and indent on rump (factory label removed)

And I totally agree 'YC-Collection' is shady seller. The guy never responded to any of my e-mails questioning the authenticity of items he was passing of as genuine.
