2. I've been a bit disappointed with the sound of most GPO instruments. Compared to EastWest they sound rather dull and colourless, the horns being a particularly dramatic example.
I've just realised that the problem is connected with frequency filtering. EW has the far more sophisticated Kompakt player which allows the cutoff frequency to be controlled. I've found that if I set cutoff frequencies of a few hundred hertz the EW and GPO sound a lot more similar. However, I didn't find anything in the manual about controlling the cutoff frequency. GPO sounds as if there is a fairly low cutoff frequency as default.