new brake pad are not parallel each other.
Brand new rotor are always with some micro "chip" in the machining
I always suffer a little when using new brake pads so I try to aling as better as I can than...the downhill let the brake pads bed by themself
 

That's why professional teams and advanced shop use this bedding machine
https://trpcycling.com/products/trp-sinter-smart-bedding-machine?srsltid=AfmBOopc75Q44CrfqVS1ftUjLfk4Y9MnWGXbAstxFcM5v6YgVbzXFhEA

+1 on the importance of bedding in these things. Perfection on the bike stand at day zero doesnt matter, the bike needs a fair bit of shake down before it's worth worrying about the slightest noise or misalignment. True for rotors, headsets, gears, pretty much everything, really.

Also worth noting the 105 di2 may be bulkier but is apparently more outwards than latest r8100/r9200 FDs

Depending on frames, that can be rather critical. Is that established, that 105 FD gives you more clearance than Ultegra? (in 12s)

BeR, any chance they make a wider tyre clearance on sizes 56 and above? That'd be visionary, on the basis that I feel that it would be visionary, and I tend to agree with myself often.
People, like this if you would like to start seeing tyre clearance scale with frame size.

Are there more people riding this frame? i feel like if there's 200+ pages on the 18D, there should be more pages on this thread.

This frame has been in the wild for a while, i got my local LLM to summarize the thread. For those interested, see attached.
Expect mistakes, it's one shot, 200k tokens. I read the whole thing, it feels correct enough.

pi --session 01a0908e-76fb-7730-abbd-b2911fbf1a52

over the years, i ordered quite a few such sets from Farsports (over email). But that was years ago because the residual value of such equipment is essentially zero now.
If you want them new, contact various sellers and ask for old stock they may be discounting, because if they make them for you, you might actually end up paying more because of how exotic such demand has become.
the smart move would probably be to get a second hand set.
I rode in the rain yesterday in the mountains, a friend who's still on rim brakes said he was braking on vibes. He started getting some bite after 2 or 3 full rotations of the wheel. I had forgotten the feeling. I do not miss it.

i built one of these for a friend who's a 50 something ex semi pro. he loves his bike. Before that he was riding a dog, to be fair, i'm not saying you'd be buying an SL9. But velobuild sells very solid frames, a couple of years ago they were super popular on this forum.

i thoroughly dislike Garmin, but my igpsport 630s is a joke of a device. they never fixed ghost watts, and i did a sprint session yesterday, which completely invalidates the session. Every single time you go riding "hard", you get corrupted data. They don't give a F, they deflect, at this point it's safe to say they'll never fix it.
The navigation is way worse than garmin (which is bad already). You sound like you're driving the clown car when you're following a route with the igp630s. the thing beeps constantly the moment you're not riding a straight line. a slightly curving road, with no intersection and no possible doubt as to where to go, beeps CONSTANTLY saying go left, go right, it's absolutely retarded. And they also seem completely uninterested in fixing it.
The gear number w Ltwoo does sync on the device, but battery level doesnt.
On the plus side, my computer mount decided to die on a mean downhill this week, the computer flew off the bike at 60kmh, and it still works. The screen broke further, but it was broken already.
And credit where credit is due: the hardware is fast. the app sync is fast. Getting the data imported back into garmin is a bit of an art form. the export, depending on the format you use, is corrupted, something they also dont seem interested in fixing. if you do .tcx, you get basic data exported well. if you do .gpx, you get more data (including temp), but half of it is completely wrong so it's unusable.
It could be a great device, it just isnt. i paid 155 eur for it, i would have returned it but i couldnt. the ghost watts stuff is just unacceptable on so many levels. for casual riding, it's ok. for anybody serious, it isnt. Imagine doing some kind of "ultra" event and the thing stupidly beeping on you for 15 hours, hell no. And it's not like you'd want to deactivate the beeping altogether, because i m not riding to stare at my screen, and the off course / re-routing thing is also worse than garmin, so if you happen to go off-course, good luck making sense of what's the route, what was the route, which way is the route, and so on.
last: i tried to see if there's an open source stack / some way to hack the software, looks like it's closed source and not an option. if the software could be open sourced, it could be a wonderful device.