These are amazing, they go straight as a laser and keep their speed very well. They still drop in the air (being as heavy as paintballs are), but no worse than regular paintballs.
BE SURE to buy these in the tubes though, I've used bulk boxes of 40 and 100 and the fins were all chipped up, they looped off to the side 80% of the time... better off with regular paintballs at that point. It's possible I got bad boxes, but this is my experience.
You know if a First Strike goes over your head, it gives a very intimidating whistle and woosh. Big points for suppressive capabilities.