Black and White preference
Here is a quick tip to help you with your Black and White conversions… make sure that “Apply auto mix when first converting to black and white” is turned on in the Preferences panel under the Presets tab. This will give you a head start in tweaking and fine tuning your black and white mix instead of looking at a straight row of sliders and having to guess at the best mix.
This is a very simple thing, but if you don’t have it turned on, then you will probably end up moving every slider… not bad if it is just for one image… but the time it takes can really add up.