One reason why I've never considered tubeless compatible road tires is because of all the horror stories about how tight they are and that would suck trying to install a tube on the road if I had to. But then I thought about the fact that the open tubular clinchers I ride are very tight brand new but they do stretch out over a few rides like regular tubulars. So now I'm actually considering a tubeless compatible open tubular like the 350 tpi Veloflex Corsa Race TLR. Running those with no tubes would be a super smooth ride.
Last year I bought a new MTB and when I converted them to tubeless is was a freaking nightmare because they were so tight. But because I had to remove/reinstall them so many times due to other problems (getting a good seal) I noticed they stretched out and became easier to mount. If I have to put in a tube on the trail it wouldn't be a problem. I assume road tires are the same.
Just noticed how many times I typed tube and tubular and tubeless, sorry