I have several dogs i train, and use a variety of training treats.
I then have the dog i am training show me in what order the rate it.
I use high value rewards for special performance i really like, mediocre for mediocre training. etc.
training treats in your pic are 4 x the size of treat i would use.
During tracking, upon correct indication of articles, i crack open a tin of sardines, and we PARTY! jack pot style.
chopped carrots, baked in oven, in animal fat, till consistency i want.
any meat raw
any meat cooked
anything i am eating, is highest value according to my dogs
cut up really really tiny! or they get full fast.