Not sure just how much better the Forte IV is over the III. I owned the IIIs for a while and thought they were very good. Moved on to Klipschorns then to Spatials. Came back to horns with the CW IV. My opinion is that it is definitely worth upgrading to.
I now own LaScala IIs and they were a very nice upgrade from the CW IV.
Oz
I now own LaScala IIs and they were a very nice upgrade from the CW IV.
Oz