I've gotten both bikes very close in weight. The 168 cost much more to build up. The 168 also took a lot more part picking to accomplish. I originally build up both with no intention to get my 168 so light.
The 086 I built because my other bike/rims was getting older. My older rim bike was direct mount braked so this is why I picked it. My only disc bike is an older cyclocross bike which is my gravel at 19lbs and has room for 45mm. So I built the 168 just to be lighter that my gravel.
I'll post pics of build sheets and scaled weights.
The 086 was a build and go. The 168 has seen a long slow process. I ordered both frames together from velobuild. Neither frame came with the forks. So that was another 4-6 weeks. I built the 086 first then 168. As I built the 168 I found out there was no seat post clamp. That took10 weeks to recieve. By that point it was full freezing winter.
The 086 is a weird combination for me at least. Direct mount and bb386. I love shimano and used their groupset. So I had to use a non branded bottom bracket that was 386 to 24mm.