Interesting to see the American horse Waiting Room in the R1 trot at YV today (I know it is now her 6th Aussie start but I am not a regular follower of the trotters)
I wish the Cathels good luck with this future broodmare
I looked her line up on ClassicFamilies and see that she is from family U1
It is a fairly strong arm of the family but it would seem the preferred arm of the family would be through Keystone Profile the half sister to Waiting Room's 4th dam (Semalu Bleue)

http://classicfamilies.net/CF/Descen...rseID=10034177

I also noticed that T6 assessed Uetliberg is taking on the pacers in the R2 C0. IMO it does not seem to happen as often as it used to