Hi everyone,
I wanted to share my experiences with the LCR18 and perhaps ask for some help.
I ordered my frame on May 19th, and it arrived on Monday, July 20th (size 56cm, raw glossy carbon).
The packaging and the parcel itself survived the shipping to Germany well. During the build, I had major issues routing the 105 Di2 cable—likely due to sharp edges in the chainstay junction area. It took me two hours to get the cable through, even using a routing tool.

Build specs: 105 Di2 groupset with Magene P515, old carbon spoke Lightcarbon wheelset; total weight came to 7.9 kg including SPD pedals from ali. Carbon elitaone saddle.

I noticed creaking on the first ride, and it got significantly worse over time. I initially used the included Gineyea bottom bracket. I thought, "Okay, it must be the BB" (like the issue a fellow the English YouTuber had), so I installed a new Kaktus ceramic BB I had bought beforehand. After just 5 km, that one started creaking too. I wondered if it might be the old Magene P515 crankset, that I reused, so I swapped it for a brand-new, unused 105 crank, but the creaking returned after 5 km. I checked the frame for cracks or loose BB cups (I always apply plenty of Shimano Premium Grease before installation), but found nothing obvious. Checked and greased all of the true axles, Based on where the noise is coming from, it has to be the bottom bracket area. Strangely enough, it also creaks when you flex the frame from side to side while applying a bit of pressure, or even just when you step on a pedal. However, when the bottom bracket is removed, there is no creaking, even with lateral pressure.

Now I’ve ordered a Praxis Works BB and hope that fixes the problem.

Have any of you had similar experiences?
Thanks in advance.

Photos will follow once I've finally managed to assemble it without any creaking. 

I want a cheap cassette to go on my gravel wheels. This is an interesting thread. I think tracevelo had a video showing, I think, a ZTTO cassette that the outer few rings had a real potential to break off.

Does anyone have a hierarchy of the various Chinese cassettes? I need XDR 12 speed, but it would be great to understand reliable cassettes across the spectrum.