i have seen a very a significant change.
When i use brush and soap my skin thanks me....but i have irritation not so often(also using DE)
FOr the first time last year when i used a straight razor, i had only a bit(almost zero) irritation...but was the first time that i used a straight razor(not so able).
the situation change in positive way after 3/5 shaving.
But i have noted that my skin have not irritation during this year and is better....is strong!
could be also the growth phase(i'm 26) but i think no...i think is changed for the blade.
After a year i have no problem and i'm very happy that i have discovered straight razor world.