Thanks Bob.
Unless I’m missing something; if I turn off ‘monitor’ in Wavelab I can no longer see the visual level and thus get an accurate level for recording.
I’ve tried selecting different drivers in the audio device setup. The ASIO driver for my interface (Focusrite Safire 6) is only selectable in the playback section if that makes sense. Whereas I can use a seperate input and output if I use the WDM-MME Safire 6 drivers (whatever they are)