Kudos to your equipment and skill! I mean it! The trouble I see with loading that fast, is the guy pulling the handle is not a computer and can't guarantee, at that speed, that there are no powder bridges, or other problems with measuring powder, or no sideways primers, or other glitches, until there's a lot of work to do to undo it (if its caught at all).
We can prevent part of that with a powder cop, or lockout die, but of course, when they indicate a problem, the speed drops to zero doesn't it? I don't understand why we're racing in the first place. I don't think that's too compatible with safe, quality ammo with Lees, Dillons, or anything else for that matter...least not on this uncomputerized level of personal manufacturing. That's an open invitation to Murphy and his mischief at my house.