Great job on the outdoor brick!
I have been doing this for a good 3-4 monts on a regular basis... and it makes a HUGE difference.
Yesterday, I did a 30 mile ride... and then did a 3 mile run. I was pumped and ready for my run. No jello legs. Felt good to run.
Also, I just run in my bike shorts and jersey. No need to change into running clothes for such a short run.
If I had to run 6 miles or more, I might consider changing though.
Keep doing those bricks... it will help you A LOT when race day comes!
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"