Again, thank you very much, I'm learning so much it's great!I think I finally figured out what you mean, I'm having a slow day, I'm sorry
I think the backing round you while you turn with her solution will work but the answer possibly also lies in this part of my earlier post which I should really have explained a bit more.
Firstly when teaching Zac a moving trick I try to avoid physical manipulation. Taking the steps is part of the learning process. Zac needs to feel the movement.
Secondly I don't look for a full circle at first, I look for Zac's/Gus's legs moving a little in the direction I want and click the movement. It doesn't take long, maybe 3 or 4 increments normally give Zac the general idea. Look at where you are rewarding Leaf and experiment to find what position starts to swing her backside round a little and build on that. There will be a reward position that does that - that's why dogs get "unbalanced" so easily, For example during recall if Zac is always rewarded by my right hand he starts to sit pointing ever so slightly at that hand.
I don't like manipulating Leaf, in fact it's the first time I've done that and feel awful doing so. So I will not do it again - promise!
I'll watch for that moment when her hind quarters start to make a turn and also when I click then treat. I sure don't won't to cause her to feel/become unbalanced.
LOL Zac's a little more polite, waiting nicely and just pointing to your hand. Leaf will paw/jump/mug me for a treat, she is that food orientated. I try sometimes to lure just using my hand, rather than having a treat in my hand (which has to be held very securely otherwise she will stop whatever we're doing and give my hand a good swipe to knock the treat out of it). Just using my hand works, provided it stinks of treats
Again, thank you so much for all your help. Now I know what I'm doing, Leaf will be a very happy girly. And thanks to Zac for being such a good dog and demonstrating so well in the video.