I personally have found that imprinting of very young foals has made them a lot more bratty and disrespectful in general. I now leave the mare and foal to bond in peace for a few days and start handling the foal at day 3 when they get turned out with the dam, I find them easier to handle with a more respectful opinion of people. I have 2 mares now that were imprinted at birth, they are both pushy, crabby and think they are on an even par with me, the other mares were not imprinted and much kinder to handle.
These are just my observations with my horses/foals. I no longer imprint.
