I thought the bendy bar ones were crap. To be fair I only use the torque wrench for carbon bits as I'm a bit paranoid and suspension fork servicing, even then you don't NEED one. I checked a few bolts with the torque wrench after I got it to see how close I was just doing it by hand and nothing was actually very far off at all. Unless you are using a breaker bar or being a right spanner then allen keys tend to naturally limit themselves in about the right place.
Oh and leave your torque wrench on it's lowest setting when not in use.
John