Last weekend, the training group got together (the first time in about a month due to COVID scares and the holidays) and did a few "set ups."
On Saturday, the first set up had a short mark on the right, and tight behind it was a middle length mark thrown hip-pocket to the short mark, and finally the go bird was on the far left as the longest mark sort of out of the picture of the other two marks. All guns stayed out. It wasn't pretty .... most (maybe all) of the dogs retrieved the left mark just fine, but when sent for the short mark they wanted to go to the middle distance/middle mark ... factors involved: longest mark picked up first, the hill side was such that the dogs started squaring up the hill before getting to the short mark which put them both upwind of the short mark and on a direct line to the middle mark ... these factors did not seem like they should have been so strong as to cause them to miss the short mark, especially with the short gunner staying exposed. Nonetheless, some pretty decent dogs screwed this up!
So on Sunday, we simplified the set up by running the middle mark as a single, then (after all dogs ran the single) we set up the triple again ... better results.
So then we moved the line and set up the mirror image of that set up ... for most of the dogs (not all), it was ugly again!
This is a MUST KNOW set up (plus, this is as simple as "go where sent"), so it will be retaught and revisited as necessary.
As the saying goes, "Amateurs work on it until the dogs can do it right; pros work on it until the dogs can't do it wrong!"