Input on Printed Maps ?

I've been playing around with printed maps for most of my recent walks thanks to others who have very helpfully posted details regarding LISTMap data, MOBAC software etc. I feel like this will be the future, printing a map only as big or small as you need it, with the scale that suits you, and the ability to overlay tracks where they aren't marked on the map, add notes, etc. The biggest hindrance so far is the quality of the finished map.
This picture shows 3 maps, top left is a 1:50k, Bottom center is a 1:25k, right is a printed map (at officeworks, less than $1 for A3) that comes in at roughly 1:34.5k scale. The printing quality is perfectly acceptable, but my issue is getting the colour right. My best effort so far is adjusting the contrast and saturation to make a more vivid image that prints well.
I've tried tyvek printing as well as covering maps with contact, both work very well. This has been very helpful as I can leave my more expensive map deep in my pack and only use my phone or 'disposable' map to navigate in bad weather.
Is there a way to enhance only the dark lines to make the text and tracks more readable ?
Is there a reference for TASMap zoom levels compared to equivalent map scale levels of detail (eg level 14 might have the equivalent amount of detail as 1:25) ?
Is it more important to print at a recognised scale (are people more comfortable using a map of scale they recognise, to make it easier to estimate distances) ?
This picture shows 3 maps, top left is a 1:50k, Bottom center is a 1:25k, right is a printed map (at officeworks, less than $1 for A3) that comes in at roughly 1:34.5k scale. The printing quality is perfectly acceptable, but my issue is getting the colour right. My best effort so far is adjusting the contrast and saturation to make a more vivid image that prints well.
I've tried tyvek printing as well as covering maps with contact, both work very well. This has been very helpful as I can leave my more expensive map deep in my pack and only use my phone or 'disposable' map to navigate in bad weather.
Is there a way to enhance only the dark lines to make the text and tracks more readable ?
Is there a reference for TASMap zoom levels compared to equivalent map scale levels of detail (eg level 14 might have the equivalent amount of detail as 1:25) ?
Is it more important to print at a recognised scale (are people more comfortable using a map of scale they recognise, to make it easier to estimate distances) ?