How much lift is enough? Nearly impossible to quote a height that's the Holy Grail. For us, the lift is a reaction to compensate for tire size due to rubbing issues. 33's are at the far end of usable, safe, economical and practical. Most of us live somewhere in the 32" world depending on tire brand. I regularly run 3 and 4 rated trails without sliders. My fuel cell looks like oatmeal, exhaust pipes are pinched, compressor tank is dented, doors and corner panels have trophies and my bullbar looks like I regularly hit pedestrians. Smooth driving, good technique and quality spotting will get you through 3 rated trails without issue. Beyond that, sliders are a must.