I flew my 12 foot Fruity Chute Iris Ultra at LDRS for the first time, and it did its job admirably. After an intentionally rather slow opening (300-400 feet) due to the way I packed it in the deployment bag, the rocket appeared to just about come to a complete halt in the air. It slowed my 66 pound (recovery weight) Kraken to a landing speed of just 10 fps, and it appeared to be catching thermals on the way down. Definitely a great product, and very, very efficient for its size. It actually slowed the rocket so much that the pilot chute was unable to stay inflated, so it collapsed with the deployment bag on top of the main canopy (it's the black thing on the left of the chute in the picture). According to the calculator above, it should have slowed the rocket to 15fps, so it actually was outperforming the expected 2.2 Cd (although there may have been some thermals at the time, so it's hard to be sure).