I finally had to time to build up the GR01 frame. It was not without its headaches such as being sent the wrong headset bearings from a retailer here in Canada.

The issues that I had with the frame was:
1. The rear chainstay from the brake line probably wasn't super clean, I didn't have an endoscope to look but I ended up "flossing" it with routing cables and the brake hose went through well afterwards.
2. The headset has a huge gap. I used the FSA headset Peter recommended in terms of bearings but the compression ring is really thick and sticks out significantly as seen in the picture. I welcome any recommendations for solving this issue as I see other frames are fine. This is the headset I used:
https://www.tradeinn.com/bikeinn/en/fsa-n55r-1-1-8-36-45--integrated-headset/138502170/p?utm_source=google_products&utm_medium=merchant&id_producte=14737909&country=ca&gad_source=1&gad_campaignid=22604584944&gbraid=0AAAAADvzHL-KtqYr2gl0JArwzm6aIBqiM&gclid=CjwKCAjw-svEBhB6EiwAEzSdrt47Rj0e6IqHPnT4u52FEArI91xAfKYPHP_3CeShccwhYDWeM7T9YhoCpYYQAvD_BwE&gclsrc=aw.ds


Otherwise the bottom bracket threads were good. The carbon layup in terms of visuals is nice. It is a nice responsive ride, cross winds are sketchy but thats my fault for riding in 40kmph+ gusts. It is nice to be running a mullet setup with the UDH compatibility. As always dealing with Peter is a pleasant experience.