First class post Corkman .
Cubs can and do make a terrier look well below it’s worth and in company you are onto a loser before you even collar up the dog .Only had one decent bitch on cubs and she was tiny ,my Tilly bitch .
The only way to persevere with a larger dog is basically to destroy the earth they are in by trenching on and following tubes ,a practice I hate but have done when trapping the unfortunate cubs has come a blank .You wouldn’t believe how tight cubs can get in ,smaller than your fist .
Like others have said ,this isn’t the time of year for starting a dog ,neither is hole ending in any shape or form .
Let the youngster teach you ,if it’s bred right , it will know more about the game than you do .
Let the dog find it’s own hole to enter ,just you and the dog in an easy place ,no fuss ,no pushing ,no bollocking .
Forget any other entering practice mate ,you are just geeing the dog up needlessly .