Without hearing a song… just 'cause I have some extrasensory perception… I guess a 5 ms attack can eat some transient but don’t squish it, I set 5 ms attack… and I see… around 80-100 ms release can recovery fast enough to catch another transient, yeah, I set release about 100 ms… Don’t forget to use SC filter while mastering, I set it around 90 Hz, so it’s pretty smooth. And just because I have some extrasensory perception… your mix sounds great without compressor 