I have a JLU Rubi on order and I am wanting to go with 37’s. What are the pros and cons of 12.50’s vs. 13.50’s ? I know there is a weight difference. I also know there is a big difference between manufacturers weights as well. I was looking at the Nitto Ridge Grapplers and the Milestar brands and was amazed at the weights. I am wanting to go with 20” wheels as well. Thoughts on all of the above mentioned??