Aftermarket choke tubes look cool, but will they help you bag more waterfowl? Choke makers tout better patterns from their wares, and some claim shorter shot strings and lower recoil, too. Skeptics say a flush factory Modified is all you need. Recently, Federal’s shotshell engineers helped me scientifically test four tubes of identical internal diameter to see where the truth lies. Our test subjects were a flush factory Remington Probore (REM‑NP), a Kick’s Vortex non-ported choke (KV-NP), a Kick’s High Flyer ported tube (KHF-P), and a ported Patternmaster (P‑P) wad-stripping choke. Before you plunk down $80 to $100 for an aftermarket model, here’s what we learned.