For what it's worth, here is my routine:
day 1 in the working chute with their head tied up. I scratch them, clip their head, tail and sheath, introduce them to a scotch comb. Tied about half an hour.
day 2 starts in the wash rack. I make a triangle shaped pen with gates, drive them in there and get down to washing. The secret here is that I use EZ All. You do not have to wet them first and if you do not get all the shampoo out it will not cause dander, etc. I don't make a big deal out of this: go slow, no rapid movements, if they get nervous I back of for a minute and I start on the hooves. Then they go to the chute with their head tied up for about 45 minutes. This is also the day they meet the blower. I only use one motor at first and go really slow.
day 3 is all spent in the working chute. I blow them off, use the scotch comb, use clippers a little on their neck, top or wherever. I leave them tied head up for an hour. If the calf is calm and my senses tell me they are ready I open up the head catch and off we go with leading.
day 4 is a repaet of day 3.
I have never had a calf take more than the fourth day to start leading.
I think day one and day 2 are the secret. Day 1 says I can do what I want to you, you can't hurt yourself and you can't hurt me. The day 2 bath may be the real gem. I don't know what it is about washing a calf (it feels good, they have to submit??), but it really calms them down.
About the EZ All....Someone asked on a previous post about the foamer. I think it is essential for how the product is designed to work. The foamer makes the shampoo come out of the nozzle in a foam that kinda acts like hydrogen peroxide; it foams and bubbles and loosens up the dirt/manure. I have been using this stuff since 2001 (it was EQ Solutions back then) and I can find dozens of uses for it.
I have used it to: