I headed out for a run thinking I would do 10, but then I thought of Slick's comment yesterday not to ask a question you don't know the answer to. I wasn't sure if my calf would holdup to 10 miles but was very confident it would be fine for 6, so I changed up my route and ran 6 at AP of 8:17. Then I did one really slow cool down mile. Calf feels good.
If all feels good tomorrow maybe I'll do 10.