I see lots of side to side razor or blade comparisons, where one shaves one side of your face with one and the other with a different option. I don't know about you all, but on daily shaves I do not get both sides of my face the same. Between using my right hand on my left side and some tricky spots on my left, the left always comes out worse. So at least I can't do a reliable side to side comparison.
Of course one can switch sides and do multiple days. That does help. You just have to take good notes so the comparison across days is accurate. In the same way one can just alternate by days, which would be as effective.
I'm just saying that some of those shaving videos where someone does one shave with two razors on alternate sides then declares one the winner, might have some bias in it. You at least have to have several shaves using the razor not just only on one side to start to draw reliable conclusions.
Of course one can switch sides and do multiple days. That does help. You just have to take good notes so the comparison across days is accurate. In the same way one can just alternate by days, which would be as effective.
I'm just saying that some of those shaving videos where someone does one shave with two razors on alternate sides then declares one the winner, might have some bias in it. You at least have to have several shaves using the razor not just only on one side to start to draw reliable conclusions.