Hi Patrick.
Just gave it a try, could not find any pins, used 8 b-zones instead in one row, 1 foot apart, from 10 yards.
Time .80+.42+.36+.36+.36+.35.+35+.35 = 3.35 (best run out of 5) Ammo #4 shot federal ("family pack" from Wal-Mart, shotgun rem 870 11 round tube, no other mods.
Need to say that I had 2 misfeeds - round got stuck below the feed ramp, guess remington doesn't like to be pushed too hard. Changing levels would add probably about .3 sec + .35 sec at the end = ~4 sec.
Way too long comparing with your auto 2.7sec. Looks like I need to look for some auto like benelli m1 for the next season.
Regards.
Oleg.