I'll let you all know in September when I get my TIP on line. I usually just go through Lukeville/Sonoyta, but you get checked at the border, at San Emitario 27 km in and again at Pitiquito at the new aduenda. I might go on over to Nogales this year as there is only the border checkpoint. I use my Title as it lists the truck weigh at 6500 pounds and the gross at 00002. The registration in NV lists 10,000 pounds. For you Canadians, in this state, and many more, the Title is proof of ownership and you don't get it until your loan is paid off. The Registration is basically, just proof that you have paid your licensing fees if you get stopped by a cop.