Question for Doc or others who know (with apologies if this has been discussed, I didn't find it through a search). I understand the benefits of Flitecontrol shot through the typical "fighting" shotgun with an improved cylinder or cylinder choke -- a much tighter pattern over a longer distance than standard buck out of an open choke. But if the idea of Flitecontrol is to give an extremely tight pattern all the way out to 30 or even 40 yards, why not just run regular buckshot through a modified or improved modified or even full choke (assuming you have a gun threaded for chokes).
It would be easier and cheaper to be able to buy regular 1 buck and the right choke tube rather than chasing down the expensive and hard-to-find Flitecontrol 1 buck. Does a tight choke cause pellet deformation that leads to fliers? I should add that I have not patterned regular buckshot out of a tight choke -- I just got a cylinder choke tube and some Flitecontrol! Nonetheless, I'm curious to know. Thanks.