That’s a great question! I’m not certain to be honest. I’ve only ever used the Turbo version. I have just recently acquired some of the regular Mach 3 blades with a handle. (I did not spend any money, they were my grandpa’s) I’ll give the regular version a shave this week and let you know!Dumb question. The last cart I used on a regular basis was the original Mach 3. What’s the difference between that and the turbo?