I just picked three of my sleds, I did alot of research with what stud to use, I ended up going with Mack Studs and dont have one single regret. The picks are ausome, the design and the way they were built, also the backers are great there very thick and wide but still light. The biggest part is that the owners Jim and Carla are just great people to deal with, they are quick to answer questions, you can always reach them if you need something. Jim definately stands behind his products with a five year bend or break warenty, which is ausome. He also sells everything you need to be able to stud your sled, templates, drill bits, tunnle protectors, and even the hardware to remount your tail flap. I had a bag of woodies gold diggers to compare them to and they made the moodies look like junk. I will post some pics of all of it. If you thinking about studding your sled check out these studs www.mackstuds.com .