Two Megs from the Bone Valley Formation in Bowling
Green, FL. Tooth on the left is 2.3" and just pristine.
The tooth in pic 2 & 3 is the largest tooth I've found
to date, checking in at 41/8".
  This specimen is from South Carolina and measures
just a bit over 6 inches. 
5 1/8", 5 1/8" & 5 1/16"
These teeth have been polished