Grinding detail planes won't make you better at applying them to a full body. I would know, cuz I've tried that shit.
Also, your logic is insane. Programming and drawing are not even in the same field of knowledge, they can't be compared. It's a regular old apples and oranges kind of situation. How good a programmer you are doesn't depend solely on personal skill. It's like me telling you how you can be a good chemist and quoting my skill as a skydiver as an example. Hey, I had to skydive more than once to become good at it, so you should keep doing inane shit that won't get you anywhere because it worked for me in a completely unrelated activity.
You know what, let's just stop this shit. Once again, this isn't /ic/.