I recently went on a saw buying binge. I ended up with four new saws. I acquired a 8tpi panel saw with the notch. I also got a D7 10 tpi, a D8 10 tpi, and a D12 10 tpi.
They are all cross cut saws.
For the life of me, the D7 seems equal to the D12 except for maybe the wood in the handle.
The handle in the 8tpi panel saw is the superior handle with the lamb's tounge. It is most comfortable to hold and the handle is eased on the edges more.
Except for the D12, these saws were inexpensive. The D12 was a $70 saw.
My worn down D23 10tpi is a better cutting saw than any of them, but the recently acquired saws need sharpening and the set needs to be made smaller. They seem to rock in the kerf.
I look forward to messing with them.