That's a great strategy to go by! I decided to go 50/50 split because my company match isn't strictly towards a traditional or roth, but based off of a percentage of total contribution.
I like the approach you've taken to be more conservative of 25% above 52 week low. My stock investment is personal assets so I more look at it as "test" money for 401k money movement.
RE: Investing: What's Your Strategy?