Assuming for the moment, that the handler has a compliant, not a disobedient dog, how do handlers hinder their dogs from running a good water blind?
Most common blind mistakes, for me and judging others. Is handlers not understanding there is a beginning, middle, and end to a blind; Make sure as a handler you address all three. So where to handlers screw up most? 1) the end, gawd do handlers tend mess-up the end of a blind, they keep it tight and get the dog almost there and then just let them get self employed. 2) the beginning, Yes your dog is suppose to be sort've facing the general direction toward the blind, makes it easier. 3) the middle most handlers understand the middle, but the term "challenge" the blind is oftentimes lost. Blowing a whistle is not held against you unless the dog doesn't obey the whistle nor the instructions you give with it.
I think Ted was arguing the opposite, that handlers try too hard to get that angle entry, chopping up the blind with away from the water cast on a dog trying to dive in early. At least, that's the way I read it.I agree with Ted that the dog's attitude is huge. The biggest mistake I see handlers make (particularly in the Am) is letting the dog get in fat on initial line. It sucks to have to blow a whistle early, but sometimes you have to. If the dog is way wide early in the blind, it is hard to recover. Ideally, the handler does what it takes to get a good initial line, but I see over and over where Amateur handlers mess this up.
Johnny G