nore was I saying that anything is wrong with perfect practice.
what I said was:
too much repetition can often create problems in many areas, if not well thought out.
under your application of word usage, and misinterpreting what I said, one could infer that once a dog knows a whole sport routine, that then one should if they want it to be reliable, go out and perfrom the whole routine every time they train.
do the people you learn from stop training the parts once they master the whole?
do they go out and train full send outs with the down everytime they train the send out? I highly doubt it.
Once a dog knows how to call off of a bite and return to the handler in a finish position for a stopped attack, do the people you know, go out and repeat doing stopped attack to finish drills, or call offs in general, 10 times in a row? no I doubt it, not if they still want the dog to perform the face attacks anyways.
another area would be defense work, too much repetive use of defense work, can cause a whole host of problems, especially if done in a repetious fashion.
Another area would be the outs, training outs repetitiously can affect different dogs in different ways, do the police dog trainers that you know go out and train using the out every time the dog gets a bite, I doubt it.
say I wanted to train my dog to try to kill you, or at least seriously mess you up. I put you in a hidden suit, and you break in the house, how many reps do you think we should do? 1-2-10-20? too many reps will confuse the dog..how many days in a row should we do that? everyday, is repetition the best approach in your mind?
another area would be when a dog has certain natural strengths and the training being worked on inhibits those strengths, or alters the expression of those traits.
muzzle work...hidden equipment, more reps is not always better..the lists goes on and on
repetition can cause boredom, complacency, anticipation, conflict,doubt, and a few other things I am sure I am forgetting to mention. once a behavior is at the pinnacle, where you want it, repeating it over and over, is not always a good thing.
I gave my answer, I am not looking to get into a compound discussion, where additional qualifiers are added in every exchange.
E-Dog - 2012 WPBTCA National Championships
The time when screech owls and Bandogges howl and spirits walk and ghosts break up their graves.
Act I, Scene IV of William Shakespeare's "King Henry VI"