BJJ Coffee Drinker,
This was my first gi years ago, (this and the absolute still come out to haunt fragile hands everywhere) and is exactly what you are looking for. The HCK comp single has a similar density to the upper part of the Eurocomp, but ends up feeling heavier than the eurocomp because the bottom half is not diamond weave. The comp single was more tailored than the standard single and material is noticeably not stretchy, still minimal in the standard but the comp has none. The only issue i've had is the drawstring getting bound up, but this was easily fixed be replacing with a round cord and not a flat one. Aka, much more fitted than any judogi.
These have been compared to chainmail for a reason.
The only gi's that beat it are the HCK double, and HCK Absolute, also known to kill medium sized animals too... Atama "double" weaves are much thinner than this gi, Mkimonos Palladium is as thick, and the material is nicer but the cut on that gi is way off and not worth it at all.
I am a heavy gi fan, having had dragao's, bad boy's, and mizuno eurocomp and a few others. The HCK's are the best out of all of these, excellent compromise for a daily training gi, or comp gi if weight isn't an issue. Only problem with heavy gi's is the washer takes a beating.