this latest from Bletchley's pretty cool.....installs easily and works flawlessly. You can read about it here... http://combatace.com/topic/63859-19161-mod/ HPW's done some pretty detailed work with damage models, tracers, and so on.......but the thing is that straight out of the box OFF is so good, so great to look at, and fly........ that you'll be lost for life and never have to touch it unless you've an itch to change things a bit (almost universal). In any event, read up on the settings that'll give you the best your computer's got fps wise...I think they're in the stickies......and have a ball...........