Hmmm, seems like a super niche product.   Don’t get why they exist.

As a manufacturer myself, she's full of shit.  This hurts EVERYONE esp small businesses and non conglomerates who can't wash their goods through 3rd countries.  Customs can't keep up with what's going on now, much less with de-minimus. She's an idiot for this.

i have a set and also the real coefficient rr I suppose these are inspired by.

these are definitely sturdy and much easier to route internally than the rr.   the tops are ok for resting forearms on and holding conventionally.  the mount was accurate (garmin) and well placed. there’s not a,second mount on the bottom though (rr has this) so it’s not feasible to run with a light really, or a camera which are major downsides in my mind.

i wrapped mine to the hoods and put antislip tape on top.

I’ve been looking for a replacement for specialized magnetic closure bibs and found a decent set: I just found this on AliExpress: $28.98 | YKYW Road BIKE Women's Pro Team Bib Shorts Cycling Clothing Mtb Tights Sports Bicycle Cycling Shorts Riding 6 Hours Breathable
https://a.aliexpress.com/_msfTlAX. 

these allowing peeing easily without having to strip down or contort yourself.

Turns out the fix is fine (xl is equivalent to medium in most western brands), materials seem decent and no sausage legs!  The chamois though is a generation or two behind the best- it’s moderate but more damningly, a single density gel thing.  I wish the seams were better and there was a softer density on the sides and thicker, greater density in the middle.

if they updated the chamois, these would be amazing!   

Any of the other women on here (are there some?) find other good options?

If you want to use with the Rio,  you need to get the 1103 (I think that's the one) version compatible with 3 bolt direct mount (sram's old standard).

I use BH90 hose & barb with no issues.

deliberately avoiding cross chaining easily adds at least 4 teeth to any rear capacity. I am guessing a 42 or possibly 46 would shift with a 46/30.  A 50/34 could probably shift to 42.   The cage on the egr must be benefiting from narrow wide pulley wheels. I had a 1x derailleur cause chain suck in the smaller cogs so I’m glad to hear it shifts well- definitely getting an egr rear mech!

I set up DI two drive trains using this technique. A 44/28 and 11-46 with great shifting is cake. I just lock out the cross train gears maybe one or two down near the end.

I don’t see a lockout or synchronous shift option in the ltwoo app, but it would be readily implemented.   I’m guessing with the acquisition of rotor, they intend to continue to invest so I’m hoping for this sort of programmability.  Embracing the software side of this would give them a huge lift.