Yes, you do sound much better, that's great and will help the situation loads of you are feeling calm and in control
I assume that the noise he is making is growling? I would completely ignore that for now and focus on the behaviour. Some cockers are talkers and grumblers, but trying to supress that can often make the situation more difficult. If you just pretend you are deaf
and carry on it will often resolve itself.
Don't forget, he is a baby puppy, you want to keep things upbeat and positive (even if you have to grit your teeth to do it
) he will respond positively. Most all aggression is fear and/or stress, so keep it light an upbeat; "Oh, you silly thing!"
Another couple of books that I found invaluable are Turid Rugaas's "On talking terms with Dogs :calming signals" and "Barking, the sound of a language".
Absolutely agree, especially "On Talking Terms"
One thing you can do that sounds so simple and daft, yet is really so powerful is licking your lips, which is a calming signal for dogs. Try it for a while, it's pretty amazing!
For example, if you are going to put his collar on, lick your lips as you approach him, and do it while you are putting on his collar (which you are doing gently and calmly) Just slow all your motions down and lick your lips. To start with you will do it almost continuously then after a while you won't need to do it so much (and yes, you will feel like a numpty at first
but when you see how effective it is you soon won't worry about it! In fact it is so powerful and has become such a habit with me for my grooming clients that I find myself doing it in my human encounters!
http://theartofdog.com/articles/calming.pdfhttp://dogtime.com/lip-lick-tongue-flick-dog-speak-colleen-safford.html