JP, i never said ole sproul is right.i only tell what i have seen.
here is good one.

today toby saw rabbit 20 yds from breezeway while i was sitting.
he froze and held point for 4 and 1/2 minutes, i timed him .then he slowly walked towards rabbit , 1 foot in air while other slowly went to ground.he covered about 6 yds very slowly.it took him about 7 minutes.then he froze again for 12 and 1/2 minutes, thats right over 12 minutes pointing.

then he went slowly about 4 yds .took him 3 and 1/2 minutes.
then he pointed again for 5 minutes.then he laided down and watched rabbit for 6 minutes,THEN HE CRAWLED SLOWLY TOWARDS RABBIT AND GOT TO ABOUT 5 YDS FROM IT WHEN IT RAN.YES CRAWLED.TOOK HIM 9 MINUTES.
toby is not POINTING LAB but i believe he has it in him.i believe if ole sproul knew how to TRAIN him to point on grouse, he would have.

in woods toby will not do this,only in my yard .he points birds/groundhogs/rabbits/snakes.why,because he knows if he FLUSHES those he will not get close to them.
but as i watch toby his nose most of time is too ground not up smelling air.
i hide a grouse wind 200 yds from my home.i dragged it with rope wearing rubber boots.
i hid toby in house so he did not know where i hid it.
i opened the back door, he knows i play this game.he shot out and found that grouse wing in 3 minutes,200 yds and found that grouse wing.

so, i do believe if you train a lab for ANTLER HE WILL FIND IT, SOMETHING KICKS IN.

take care sproul