Hi Biggy,
My guess is you don't see a draft published, because it may differ depending on the motor installation. We don't have a TomCat, but have traveled with our friends (Brent and Dixie on Discovery) who do... we tucked into some pretty skinny places, where our sounder was reading 2.5 feet... and not a problem with either boat. You can raise the motors to gain a few more inches when necessary. So, while I can't give you a number in inches, I can say that these boats can get into places most boats their length (other than bay skimmer types) fear to tread... er, float.
I'm sure some TC owners will chime in.
Best wishes,
Jim B.