Ya im still learning i just noticed that if i shoot standing up at .54 (with all the drop+aim+breath disabled)with this rapid fire it shoots really fast and when i apply the drop+aim+breath it seemed to have a couple hiccups, at least for me. when i decreased it to .50 it just fired like it did when it was at .54 (without all the drop, aim, & breath added). I don't know if that has something to do with all the functions running at once or what? I read somewhere where someone was having problem with a rapidfire when online and they thought it was because of the added led flashes to the RF and when they disabled it, it fixed the lag problem they were having. Maybe it could be something like that or maybe its just a little bit different for everyone due to connection i.d.k? When i said this particular macro has a little hiccup after the first two bullets its more like a studer in the sound of the gun being fired but the bullets don't studer just the sound of the gun being fired seemed gaped a little like bam bam....bam bam bam ect.