Joe Gilder of homestudiocorner.com shares his expertise on the possible over use of the compression effect when editing tracks in this excellent post. The snare drum is used as an example of a separate instrument track object of focus. The article suggests that if the drum is run through three different compression effects, individual, drum bus, and the mix bus, it can get all the strength squeezed out of it. Instead, reversing the order of the use of these three effects is suggested, checking the results at each step to see if the desired result has been achieved.
Read the full article here:
An Easy Way to Avoid Over-Compression