Health - No tolerence to benzodiazepines?

[computergod]

My friend claimed that his tolerance to benzos didn't increase, I
thought he was mistaken. Recently, I checked up on benzos in Merck,
it said that its possible not to build up a tolerance, in certain people
at certain dosages.



I'm currently taking Risperdal for anxiety, but prefer the effects
of benzos. The only reason I'm not taking them is that I don't want to
end up needing to take more, and more.



Is there some way to know if I won't develop a tolerance to them, beforehand?