I realized that I likely wouldn't want to do a complete 3 pass shave with the Parker, so I kept my Merkur 34HD handy. I prepped up with a warm face wash and started soaking my brush and the Stirling Glacial soap. I also soaked up my puck of Van Der Hagan glycerin soap to help cut down on the menthol eye burning.
It worked! I made a good lather in the mugs and painted up my whiskers. I opened up the Parker and got going. It really wasn't as hard as I expected. I was fairly tentative but did not open any gaping wounds or cause any weepers. I had absolutely no issues with using my left hand to shave the left side of my face.
After pass 1 with the Parker, I picked up the Merkur and finished up the shave in easy fashion. I completed the whole shave with an application of Captain's Choice Cat O 9 Tails. The combination of ice cold Glacial and the sting of the Captain's Choice made for a wonderful face feel. I really liked it.