Nice one. I'm getting on fine with mine, so far. As you say, a little heavier than 105 but in my book not that far out. Best of luck!

This is the way. To corroborate, I was struggling with MTB style brakes for quite some time. Started with super budget Tektros, then to TRP Slate and finally to Shimano XT. After bleeding each of these for may be 6-7 times back to back, I couldn’t get the bite that I wanted. Just mushy mess. And then finally this tutorial helped - a technique called bubble bleed:

https://m.pinkbike.com/news/tech-spotlight-5-minute-bubble-bleed-2014.html

5 minutes and voila, my brakes feel so good. Don’t forget to take the lever off of handlebar and tap them with a rubber mallet. And of course the bleed port at the highest position possible. Then rotate the lever without spilling the oil (if there is oil in the cup). This was the only way I could get that last holdout air from the reservoir. When it worked I almost felt silly.

My usual go-to, but for me anyway this worked ok on the front but no joy on the rear.

Has anyone any idea what the 'air' port is used for as yet?

I'd use the hose type 1st ment for the caliper.  So if the calipers were designed for bh90 first try those. If you don't like how they feel or the calipers don't move correctly install bh59 hoses.

They're the same as 105. I know this as I swapped the 105 shifters and brakes for the L-Twoo models, and keep the 105 hoses, barbs and olives.

***UPDATE***

I did a 20 mile ride today in them, in poor conditions; some rain, lots of puddles, lots of mud (this was a gravel ride mostly). The shoes kept my feet fairly dry; some water ingressed via the top of my (wet) sock.

Apart from that, nothing to report really. They worked well. I forgot I was wearing them. The only potential downside is that the elasticated ankle cuff has become muddy, and I'll need to clean that off before I dry them.

Wow, thats crazy amounts of money. And I dont like the idea of the rear mech being direct mount either.

Quick update. I've managed to get a pretty good bleed in there now, and think I've got the way of it. I was looking at the air port, and wondering why they'd include that. Looking at the hood design, the hood and reservoir are quite prominent, and air could get trapped inside- hence the air port.

So what I did was something I've done in the past- use a work stand to rotate the bike around and remove any air. I alternated between having the brake bleed port high, and then the lever high. I kept alternating these, and bleeding at the same time. Eventually all the air came out.

BTW, the pad adjust grubscrew falls out the back if you exceed 7 full turns clockwise. It's easy to reinstall though, but the lever needs removed to do so. If you do this then the lever return spring needs to be in the right spot to work right; all I do is lift it up a bit, push the lever against the front face of the hood, and slowly side it down while pushing gently forwards. This keeps the spring in place, and evenmtually it rests against the flat part above the pivot.

Hey all- I know its a bit cheeky to make a 'how do I?' post my first post, so apologies in advance.

For those who have set these up and got a good bleed on the brakes....can you do a quick step by step?

I'm doing the following:
1)Standard bleed block in the caliper
2)Pad advance ("reach") grubscrew fully turned to the left
3)Attach 2 x syringes to the bleed ports on both lever and caliper, each with approx 10-12 mls of fluid.
4)Pushing from the caliper syringe until no air is seen at the lever syringe
5)Pushing at the lever syringe until no air is seen at the caliper syringe
6)"Flicking" the lever to remove any air bubbles at the lever
7)Disconnecting both syringes and reinserting the bleed port screws to close everything up
8)Removing the bleed block and reinstalling the pads, and the wheel
9)Pulling the lever in firmly 7 or 8 times
10)Turning the pad advance grubscrew 4 to 5 full turns clockwise (it falls out on turn number 7)

Doing the above is disappointing, as there's next to no braking power. Am I doing something wrong?

thx