What can fiberglass insulation NOT touch?
This is pretty late for the op, but for anyone else that comes across this threat.

Resilient channel is extremely easy to short circuit, and there are numerous examples for installs gone wrong with sheetrock falling.  You want hat channel with the appropriate amount of clips to actually hold the weight of the sheetrock. 

Just a home theatre enthusiast here, but I have used their products in our first house.  Check out the soundproofing company website for general guidelines.  


Pink or yellow fluffy will keep the the joist bays from becoming a drum.  
Using 5/8 type x sheetrock will give weight.
"Hat channel" with the basic clips is all that's needed to break the connection.
Double sheetrock with green glue works as a dampener


I like the idea of rockwool instead of fluffy for moisture in our situation, but in a dry space it does virtually nothing better than pink/yellown fluffy insulation to stop the drum situation.

Hope this helps.