I honestly do not like halti or gentle leaders because once you remove them and go to a regular collar they go back to pulling. Prongs are very effective as I said before but must be used properly. When used properly they are very effective and not really negative.
A dog has so many friends because they wag their tails not their tongues.
R.I.P. Buddy 2002-2008 The best Mastiff ever.
Now owned by Clark the Crazy American Bulldog