I have so far resisted using the angle mod (moving Z X C V B one space to the left).
Presumably, the main advantage of this mod is the easier access to the B key. It's true, it is quite annoying in the default position, arguably the hardest key to reach on the keyboard.
Part of my reluctance is I really like having C where it is now, very comfortable to reach with my index finger, and don't really want to relearn this key on a new (worse) position.
A more tempting change for me would be to use a slightly modified version of the angle mod, with bottom keys arranged thus:
Z X B C V -- i.e. Z moves to VK_102, B now with middle finger, C and V are unchanged.
I find I am somewhat conflicted about making changes like this. I believe it would be an improvement, but at the same time I want to remain using a standard(ish) recognised layout.
Any thoughts on this?