Last week I bought a Legere Signature reed for tenor sax and that is easily the most reed-like in sound of any of the synthetics I have played. The softest reed that I could buy was a 3.0 but that feels a little too hard for me, so I have sent it back to exchange for a 2.5 (Legere offer a very good returns policy).
Hope that helps
Where did you get your tenor sax Legere Signature reed from? Reeds Direct have me on a notification list but I've not heard anything from them yet and Reed Express haven't got any either.