Though we both seem to favor the less aggressive razors I guess there can still be a significant difference in what we mean by less aggressive? The BS has never nicked me and I have used everything in it from Derby Extra's to the much sharper Gillette Yellow's and Personna Reds.
If you have used a Rockwell 6S or 2C and knew which setting was best for you that might give a better indication of how aggressive the other's you mentioned were. For me, the #3 setting is best for the blades I just mentioned, the #2 is too mild and the #4 is just a BIT too aggressive.
I prefer very aggressive razors. I just supplement that with other less aggressive shavers from time to time. Wolfman WR2 1.55, R41, Charcoal Goods Level 3 are all in my top rotation. When I had a Rockwell 6S I used plates 5 or 6. The Razorock BBS is so much milder than what I normally use.