I have a trial tomorrow, so do not have much time to respond.
I prefer left hand mark to right hand mark.
More factors in Left mark than right.
- Flyer influence
- Terrain break
It just feels to me like there will be more action on the left than on the right.
I also feel that the terrain lends itself to right hand action after the terrain break that will push the dog away from the bird.
But, hey, that's just my opinion