It is my understanding that the Tread Lightly $100 membership will get you 1% off the price of selected new Jeep models. This is regardless of whether you pay more or less than invoice. You must show the membership letter at the time you buy the Jeep. I did not need it when I placed my Jeep order, but I need to bring it when I pay for it and take delivery.Could you please explain what the tread lightly program is and what do they mean by 1% below invoice? Do they mean 1% below what the dealer paid or MSRP? If it is 1% below what dealer paid how will I know if they are telling me the truth of what they paid?