This is a big one to me- when I´ve listed several different bikes for sale, the form will only recognize certain model numbers. Most recently, for instance, I listed an 83 Honda Nighthawk 550, but when I submitted the form it told me that model wasn´t recognized- so I had to list it as a 650... which makes a pretty big difference when many people are shopping. So, my suggestion would be to make the form so it allows you to manually put in the model.