I really don't know how Scott trains ours for halter but he can set them up without setting feet or touching them and all done off of moving the lead from side to side to move feet, all body language and we do not use a trainer, we do our own training. Its really neat watch and not too many people can make a horse set up like that and not move. At Nationals this year he had our appaloosa yearling filly in the Futurity class set up three times for the eliminations of the class which lasted at least 45 minutes to an hour and once he had Diva set up, she never moved until he gave her the signal to move and she was done showing. I can't do halter like that... I know that, so he shows them and I groom them ....
I will have to pay more attention when he starts working the horses this spring since we have a miniature filly to train and two shetlands, one being a classic foundation and a modern shetland, its gonna be a interesting & fun show season with learning about showing a modern.
As far as the grooming part, get a good set of clippers is the main thing. I use the Double K clippers and shampoo for horses with white and horses that are black, the shampoo really washes out nice and has a conditioner in it and it keeps the white..white ...and keeps the tail nice. Keep your horses tail braided up all of the time other than showing, makes the tail full from the top to bottom.
Feeding program is very important as well and use black oiled sunflower seeds and ground flax in with your grain that you use. We use three kinds of grain here along with flax, sunflower seeds and shredded beet pulp, and soaked alfalfa cubes and some good hay.
Having fun is the main thing while showing also