Well, let's see..
Tevo is regged in all good extensions, but has only 461.000 google hits and has 294 ovt score and the best extensions are parked.
Hexa is also regged in all good extensions, has 3.230.000 google hits and has 106 ovt score and the .net and .com do have a website on it.
Let's see about the meaning of the words or possibilities.
Hexa:
-means 6 in Greek and is a Numerical prefix
-Beta-hexosaminidase A
Tejo:
-the Tagus, a river on the Iberian Peninsula.
-a sport, tejo (sport), a national pastime of Colombia.
-The Tutmonda Esperantista Junulara Organizo (World Esperanto Youth Organization)
-Tejo, Ethiopia
So we know that, but what can be the value with a .us extension...
The names both sound nice and catchy.
But what sales are made with LLLL.us names?
Well, if i check namebio.com I don't see any sales, so that's not good.
For now, hexa.us and tejo.us mid xx for a .us lover.
Enduser? You never know, but for now I think they will go for other extensions (except for hexa.us because this one is already regged and used in .com and .net).