I just spent an hour trying REW 4.0 on my IB.
I started from scratch with my BFD and rebuilt a powerful sounding filter set.
Very useful to have all the previous curves instantly available as progress is made.
There are a lot of really useful advances over the last version.
4.0 feels much more flexible and intuitive in use. It seems quicker too with lots more information.
Saved graphs are now set to the Shack's preferred posting size too.
It shouldn't take anyone long to start thoroughly enjoying 4.0. Particularly if they have spent any time on earlier releases.
Very nice. Well done, John!
