I love your enthusiasm and can relate to the OCD of it. I, many times wished my beard would grow faster so I wouldn't have to wait until the following morning to test a new technique or a different blade or hone.

As a real doctor (not just someone who played one onTV) I can say, you will ABSOLUTELY cause NO harm to your skin by shaving twice a day.

Have at it. Knock yourself out!!!

Take lots of notes as a month down the road, you won't remember.