Think of it,? What does a ported choke do? It lets out the gases from behind your shot. Yes your recoil is less,but not anything to be measureable!! Don,t worry abjout recoil. One never notices it when hunting or shooting anyway unless your afraid of it or some other problem. So, back to the choke,when gasses are released in this manner then you have less velocity,then you have what less idstance in your shot,eavean though your max vel is suppose to be between 18-20 of your barrel,. Just shoot what choke you have and don,t worry about this choke and that one a momd choke will do all for distance andpattern just shoot more and get to know what you gun can and cannot do. vangusnmith