I purchased a Pioneer Tradie with backbone mounting system and couldn’t be happier!! I removed the factory side rails on my 2018 Prado GXL and the backbone system fitted on by utilising the 3 mounting locations on each side. It is a very sturdy well manufactured system, holding all my camping items on recent camping trips. I am yet to test the loaded rack in full off-road conditions, but I am confident it will hold up to the task. It has sure proven to be solid on rough dirt roads thus far. The only negative, is that initially I noticed the aluminium platform slats rattled on rough surfaces, but that seemed to disappear with more use. I am very happy with the aesthetics of the tradie rack, as it colour matches my dark grey Prado perfectly (by chance!). Also, it is dead quiet on the highway and I don’t even know it’s on. All in all, I would 100% recommend the Pioneer Tradie with backbone system.