2nd shave with Rapira Super Stainless. Same impression as before. Sharpness 1 notch above Shark Super stainless (which i consider on the lower spectrum of sharpness, but sharper than Derby). The blade, i think deteriorates pretty fast. Mix of BBS/DFS this time. But like the first time, veeeeery comfortable 4 pass shave. At the end the skin feels almost as if i hadn't shaved. I could have done 5th pass easily on this blade. Nick/weeper/irritation risk is far, far, away.
However, the sharpness of this blade, might not be for everyone. In the 1st pass, i feel an ever so slight difficulty. It doesn't glide with the same silky glide as the Voskhod. I 'd say it's 2-3 notches below Astra for sharpness, again, every time it reminds me of Shark Super Stainless, but slightly sharper. However, the Shark seems to keep its edge better from shave to shave. For me, this Rapira, is a max 3 shave blade, with the 1st shave being the best (contrary to Astra that in the 1st is a bit rough). The Voskhod is a better blade, but for variety's sake, this is a very good alternative.
The only Russian blade i didn't like so far, is the Sputnik. Amazing.
P.S.: I must buy a 4th DE89, to have 3 spares, because sooner or later zamak will break. I dropped the zamak head twice today while cleaning it. Fortunately nothing happened, because i had removed it from the razor, so it wasn't so heavy, but still... And the DE89 shaves to very similar efficiency to Weishi, but always a bit less rough, with any blade. Wonderful. I must make sure i never remain without one.