In the Lardy program he states that "Dogs learn to go straight through casting." If you want to tighten up your lines then I would keep tighter line standards on your blinds. It all depends on how far in training your dog is. Casting and keeping good line standards help to teach better lines, fighting factors, ie falling off hills, fading with the wind, ect. Your dog will run better lines by running lots of blinds. Hope this helps.
Good Post. IMHO if dogs learn to go straight through casting then it only makes sense to run a lot of patterns, and I mean a lot. ( 20 or more ) Patterns when first taught are in essence cold blinds, done on a repetitive basis until done with a high degree of success, ie. lining the blinds. IMHO there is nothing wrong with doing patterns throughout the dogs training program using different types of terrain, cover, water, ditches etc.
1. If you come back to a pattern 8 mo down the road its like something new to them.
2. They are a confidence builder when things are going rough in other areas of your training.
3. They are a great tool to use in conjunction with marks to teach poison birds, running tight lines behind chairs, under the arc, etc.
4. They are nothing more then a exaggerated yard drill,handling drill, lining drill depending what you want to work on that day.
5. Dogs like to do things they are successful at, and if your dog is not happy and doesn't like to run blinds he will never be a team player no matter how much HE loves you.
6. If for no other reason they are good exercise.
I also run a lot of cold blinds to, so don't think that patterns take the place of cold blinds. To me cold blinds tell you where you are in your training program. Cold blinds to me are a testing situation, you learn what your dog will do in trial situation and you learn weather or not you can trust your dog in certain situations or weather or not you will have to stop and cast, or trust them that they will keep on line and roll while out of site, cast on or off points take lines through cover at a distance,cast into water at a distance or line through it.
These things are all made possible through the use of pattern blinds. And lots of them. IMO