I agree with everyone for different reasons. I do think whether or not to use a martingale strongly depends on the rider. I don't know if I am experienced enough but I have used martingales. Also almost all trainers use them here also as the training aid with young or green horses. Blu just needs a little more that most to get him started and I think he will be great after some work! Thank everyone for all of your input. It has helped me in many ways! :-D