Hydro one.
I had this dog
1/2 border collie, 1/4 lab, 1/4 german shepard.

Buffy was a hard core killer.Only chased a hot track but made 100% of black bears tree. No guff.
I crossed her to a track pounding lion hound with no quit black and tan from Brent Sinclair.
What I got was these two,

Burger and Cookie The biggest mistake I made with cross was not keeping the whole litter.
These dogs would cold trail, lion and lynx jump and tree 85-90% of everything. they did this with style and speed.
They did have a little to much hair for hot weather.
Both are gone now Burger killed by a lion at 2 1/2 and Cookie this past year at 6 years from cancer.
The Dam is gone as well, I wish I would have made that cross a few more times.
So know you don't need hounds to catch game, just dogs that will trail.I would stay away from the karelians if you want something to trail game.