A tablet would have made the couple of hours drawing, into a couple of weeks.
When you have to be pixel accurate in placement, its very hard to do with a tablet.
FYI: I own a high priced Wacom tablet, so Im very familiar with them.
As said, they are basically just good for shading in irregular shaped objects.
Thats about it. Even the pressure sensitivity isnt very accurate or controllable.
(so trying to control box sizes accuratly wouldnt work, nor do paint programs
even support that functionality)
And the worst part... is that you cant see where you are drawing to. With a real
pencil, you can look at the end point where you want to draw... and aim your
pencil towards that point easily. With a pad, you can only go by what you see
AFTER you have drawn. (unless you have a tablet which you can draw on,
which are extremely expensive, and still not as accurate as a real pencil)
This means you need to guess, then erase/undo way too many times.
You basically end up using straight line tools, vector paths, etc... that can
all be done fine (better) with a mouse.
Resolution is completely separate issue. I could have made it any res I chose.
I can also still re-size it if needed.
3d Studio Max would probably be better, as you could simply get accurate parts
by typing in accurate numbers in the basic shapes. However, 3d max is a pain
to get used to... and to position things in 3d space it also a pain. Its all around
simpler at times to just 2d it (cad/sketch)... and go from there if needed.