I was all set to order a puppia harness for my pup, but after reading some of the threads on the site I am very hesitant. I currently have a step in harness for Summer but she doesn't seem to crazy about it and walks much slower in that than she did when I just used her collar before I had the harness. She isn't a puller by any means I just want the harness to avoid any pressure on her neck. Can anyone recommend either a brand or type of harness that I could try for her? I live in a downtown area so am just using a 4ft leash but am wondering if I should have a longer one on hand as well. Thoughts?