I also agree and I got rid of my bench years ago and do everything on the ground.
From Force Breaking - to teaching Whoa - the whole ten yards. I even went without a e-collar on this latest dog as her temperment dictated I not use it.
My latest GWP just received a NAVHDA Utility Prize II. All RTVs to hand with tail up - ears up and happy as all get out to while bringing it back to me and to hand after she sat in front of me.
Seeing a dog that is happy to do the dead bird retrieveing task means I have successfully completed her FF.
JW