thank you so much for all your advise. I'll probably try a harness but our puppy trainer at classes gave us a choke-collar to try. No sure what i think about that one yet.
A harness is kinder on the dogs neck but doesn't teach them to stop pulling
a slip lead will as it tightens when they pull and is slack when they are walking nicely to heel. It is really repetitive conditioning but will pay dividends in the long term.
Not sure I agree with choke collars or chains - both seem a harsh way to treat a dog.
I heard a great saying "a year on the lead = 12 years off the lead" the reverse is also true. I would advocate taking your time, teaching a reliable recall first, stop at distance second and heel work last. Depending on how much prey drive your wcs has will dictate how long it takes. Today I have taken delivery of a remote control 4x4 car to help speed up Coral's training with regard to not chasing.......I suspect it will take a lot of batteries but worthwhile as I'll have a reliable dog, that I can call back when asked and stop at distance for her safety.
Jayne