I bought a seven-piece set in the late 1970s that came equipped with Remo CS (black dot) heads, and I fell in love with them. Up until that time, I'd never used anything except Remo coated Ambassadors, so the lovely "slap" and impact that the CSs brought out of the drums simply floored me.
A few years later I went to work at a music store, thus fulfilling a dream of mine. There, I had a chance to try out all the current drumhead lines offered by Remo and Evans. I realized that the sound that I found so interesting was the result of the heads being clear, not coated. The CS dot added the extra slap that I liked because the area covered by the dot became a two-ply sheet, with all the tonal personalities that that entails.
I still like CS heads, but prefer simple clear two-ply heads because they are able to produce the CS slap while dramatically enhancing the frequency spectrum of the head/shell combo. The CS sound is much more sharply focused, with over/undertones being attenuated by comparison to two-ply clear heads.
Nonetheless, you owe it to yourself to try the CS heads. I think you will be pleasantly surprised.
I played Black Dots over Clear Ambassadors years ago, and they sounded pretty good (not my favorite sound by any means though). I was going through a Tony phase. Then about six years ago I decided to try again. I bought a full set of Black Dots for both top and bottom of all my toms. I started with the 12" and tried it out.
Y U C K!!!! Turned my USA Customs into cardboard boxes. I immediately returned all the heads. I may try again in the future, but it will be Clear Dots next time.
Tony's drums work with them because, 1. his smallest tom is 13", 2. they're cranked, and 3. he plays them loudly for the most part. Played quietly they don't cut it.
I also love Gary Husband's sound on the I.O.U. record, and he was using all Black Dots on that too.