Hi Scooter,
If you have picked a great surgeon with hundreds if not thousands of Da Vinci surgeries, he/she will do the best they can to get it all. Then the path report will be what it is. I came out with positive margins but I know my doctor did the best he could with what he had to work with. He has done over 6,000 Da Vinci's. So far my PSA is still undetectable.
My surgeon had me on Viagra 72 hours after the cath was removed to get blood flowing down there ASAP. I have been taking Sildenafil for over a year now. I use 100 mg cut in half 2 days a week and a 100 mg "boost" pill one day. Also use a pump, hopefully your doc will have you on ED therapy pretty quick.
Good luck and keep us updated.
Bill from Florida