For TQ we found that when we put in the new ozite, that unless you had great ventilation and air swirling, the tq oil built up in the carpet and it was a mess.
Not sure if it was with the new foam backing, but it didn't evaporate. So with lots of fans, it was ok.
Changed to Jack and it was better.
It was at the time that carpet nats happened with Ruben... he changed for the same reason from tq to jack. Now I hear he's using paragon.
It's always something!