I want to decide if I am going to use Colemak or Colemak DH or maybe Programmer Colemak.
I will tell what I type for(it depends on what you use keyboard layouts for):
Typing practise on keybr.com
Programming(I do C++ Unreal Game Development)
Writing on forums or texting and sending emails
Googling(searching for info in a search engine)
Little bit common:
Keyboard shortcuts like Ctrl + C & Ctrl + V & Windows Key + .
I also have 31 days experience with Colemak.
What is most suitable for me(you have to consider what I type for):