Very solid advice from BAM...
I will just add to this as you mentioned you are using a 10/0 for your detail work. You will find it much easier using a good quality size 1 or 0 brush for this kind of work. As it’s all about the sharpness of the tip/point. Now having a tiny little brush is great as there are very little bristles which makes it nice and thin for fine lines, but the problem is it won’t hold much paint, and the paint which is in the bristles will dry almost immediately. By using a larger brush with a super sharp tip will allow you to load the brush with paint allowing you to paint longer, smoother lines.
It will take a little practice figuring out the paint consistency (dilution) and the amount of paint you need in the brush to get a straight smooth line. Too much paint or too dilute and it will run everywhere and make a mess... too little paint or too thick will cause broken and inconsistent lines. You can practice lines on a piece of paper or an old piece of plastic/model to work out how to get the right amount of paint and dilution to get the lines running smooth.
This of course I’m talking about when you are painting the flat surface lines etc, but the same applies when your using the side of the brush for edges, as you will be able to paint longer lines.
Just remember having a super sharp point on the tip of the brush is the most important part
just do some practice and in no time you will be a master at it :good::good::good: