Looking at my Hell Razor and the pictures of the TB, they look very, very similar. The blade size and thickness are the same I believe, not sure about the width but it looks similar. Mine has the tang modified to a skull crusher point but it does look different than the TB skull crusher. The HR and Skinny Ash have some similarities but the HR and TB look like different variations of the same knife. In fact, I think I am going to buy a TB without a choil and in a different color than the HR. I think I will receive almost the same knife as the HR but just with different options that I would prefer.

The HR is not light but is definitely not FSH/NMSFNO big and heavy. It feels good and fast in the hand, as I suspect the TB will.

Compare this to the TB:
My HR
[Linked Image from i769.photobucket.com]
Picture from Jerry Busse in this thread: (http://www.bladeforums.com/forums/showthread.php?t=660991):
[Linked Image from i80.photobucket.com]

The TB doesn't have blood grooves or CBT and the front edge of the handle is different. Also, the skull crusher is different and the blade shape is just a little different where it transitions to the point. But the knives do have similarities. I think they both would make nice multi-purpose mid-size knives.