I have extended my commute to 50 miles each way. The graphs are above. I few more rollers and a good little hill on the way back to the car in the evening. You can see that on the elevation profile graph (exact opposite route).
I think I will keep it at 100 miles a day for July and then maybe by August start doing full commutes of 65 miles each way (130 miles a day). This is only for three days a week.
We’ll just have to see how the legs hold up. I am experience some pain on my left Achilles tendon I hope it goes away.