I was wondering if anyone has used the ikon oss or ikon b1 standard (closed comb) heads. how they are as shavers and are they aggressive? The oss is the one with the open comb head on one side, a closed comb head on the other side and the b1 standard is obviously a closed comb head. I believe these razors are stainless steel with a black coating on them. Have not seen much posted about them as of late.