Like most anything, there are some details that can take years to pick up, but making a basic, suitable string is quite easy. There are several websites that detail the process and a few videos that will help even more. When I first started making them, I watched a video by Larry Wise, that was very good. It took me only a couple practice strings, before I was able to make a string as good as anything being shipped with a bow at the time.

One of the great advantages of making your own, is that you can take all the time you want and pay attention to detail like no stringmaker can. They have to make money, you don't.

Don't worry about what material manufacturer to use. Both are excellent. Besides, you will be hard pressed to even try all their products. There are so many choices, that a comparison is difficult for anyone. I've been using Brownell's Ultra Cam for years and am very happy with it. It has the least stretch of any material and that is more important to me than some of the other advantages other materials have.

Search the web, you will find a lot of info. Good luck,