Well guys, I am still leaning towards getting the practice razor with the blunt edge, here's why:

I'm 78 yo and have competed in many sports that require hand-to-eye coordination (think tennis, golf, skiing, martial arts, Nordic walking and others) and I learned that repetitions through practice (of course using correct techniques) is the best way to develop your "muscle memory" in executing the proper movements. Since I shave (and I have started to shave with a real straight razor) only every other day, some times every third day, I would not get that many reps in while doing my "real" shaves. Any "bad habits" started using the practice razor would soon be corrected when doing my real shaves. Also, and one of the MOST IMPORTANT reason is that I am right handed and I NEED THE PRACTICE WITH MY LEFT HAND. IMHO, I think that $20 is a good investment in developing the necessary skills to shave properly with a straight razor. Does anyone here see where I am coming from?