Second Week Update: Gillette 7 o’clock Sharp Edge (Yellow)
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I have completed my second week of shaves with the Gillette 7 o'clock Sharp Edge (yellow). I evaluate these blades as most do, in terms of sharpness and smoothness. I also tend to evaluate a blade in comparison to the Astra SP, since I am so familiar with this blade. I won't evaluate these blades in terms of cost, because as far as I am concerned they are roughly in the same ballpark, i.e. pennies per blade. In the grand scheme of things...very inexpensive.
After one week of shaving with the Gillette 7 o'clock Sharp Edge I found it to be a top quality blade. The blade is very sharp, especially on the first three or four shaves. I found it retained its sharpness for the full 7 day trial. Indeed, I could easily have continued shaving with this blade for several more days. It was a bit edgy for the first three shaves, and then it very noticeably got smoother for the remaining shaves.  The 6th and 7th shaves were an absolute delight.
No complaints with this blade.  No nicks, cuts or weepers from this little charmer. And I didn’t experience any post shave irritation from this blade.  Overall: this blade provided a nice clean shave and provided a good post shave feel.
Sharpness: 8/10
Smoothness: 7/10
Comparison to Astra SP in terms of overall performance and comfort: The Yellow is slightly sharper than the Astra SP, but the Astra SP is slightly smoother. Astra may have a slight edge in terms of comfort perhaps because it is not quite as sharp or edgy for the first few shaves. A very close race. I could see myself switching to this blade.
This coming week I load up the Heavy Tech with a Derby Extra blade. This is one of those “love it/hate it” blades, so I am anxious to give this a whirl on the dance floor.  I will report again next week after my 7 days!

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