hi,
welcome, well done for choosing a staffie x too

pulling is a really common dog problem - i had it with both my dogs and luckily it is one of the more easy ones to sort out too, i am sure you'll crack it, let us know your progress !
Alfie looks a fairly typical staffie mix, i see alot of staffie in him, personally i dont see collie at all, or lab, but i do see a touch of something else around the ears and pictures can be deceiving sometimes (says she who went to pick up a white dog and came home with a tricolour ... some flipping picture lol !!!!!!) - he's handsome looking and you look to have him in fab condition look at that coat shining away !!

claire x