Just thought I would say thanks for all the advice and guidance on this forum. I have now got a muzzle for Kasha and it has made me more relaxed. I can focus completely on her training.

I might try a couple of different types of collar and lead too. She is calm enough on the harness generally, (except when she sees another dog) but I will try a check type collar for street walks to help me control her more when she sees a dog. I will use the harness and a longer lead for park visits. I might even be able to let her off lead with other dogs in the park now that she is muzzled.

Thanks again for the advice x