Not All Roads are Created Equal

As I've been hitting the streets without shoes the last few months I've come to the realisation of some things:

1) Not all asphalt is created equal - some is smooth and great to run on, and other times it's almost an aggregate with a rougher surface that is not so great to run on

2) Cement is a no-no whether clad in shoes (due to the hardness) or barefoot (due to the
coarseness)

3) The white lines on the shoulder are the best road surface to run on - they're smooth and cool and feel good on the feet

4) People still look at me like I'm nuts

The run a couple days ago was a total of 18 miles with the last :20 done barefoot. I really have to figure out a place to ditch the shoes and continue running, maybe going back later and picking them up. It's easier to concentrate on what I'm running around and over without the extra weight in my hands. I picked it up at the end and did some short sprints. For months I was experiencing calf tightness after around twenty minutes but wrote it off to not doing it enough. Then I started experimenting a little more with different styles throughout the run. I was always concerned with never landing anywhere on my heel and all on the ball of the foot and still had the tightness and my calves were very sore the next day (like post-marathon sore). What seems to work better is relaxing the foot and letting it land more forefoot and feel the heel but not until the end. I'm still not landing on the heel but it's doing more work. That seems to be better without the lingering soreness for a day or two.