The darts worked Pretty well overall, except they kept getting stuck in the barrel of my Worker Cheetah dart blaster.
I am pretty sold on these darts as they provide actual stopping power through transference. Mind you it ain't much of a energy/mass load to deliver but I can make welts at 20ft. I am using a modded Phoenix 1 that shoots a little hot at 175fps tops. At that speed these darts start to feel like bee stings at close range. These are not made for what I use and it eats up at least one every clip. But they do a good job either way.
Overall good experience ordering and receiving the product. However, the gen4+ darts doesn't seem to stand up to Nightingale very well. The 10 initial purple darts came with Nightingale were perfectly fine even after 10+ runs. When I switched to the gen4+ darts, literally every run of 15 darts, one or two will disintegrate. Not sure if this is an issue with quality or compatibility.
Grabbed these for a rival in line conversion, so far they work well.