I haven't seen much talk about the Superchips crawl tune, so I thought I'd post up. I tried the crawl tune for the first time last weekend on the rocks, and it was great. I'll probably use it all the time now when rock crawling. All it does, is it gives slower throttle response, so the Jeep isn't so jumpy when applying the gas in first gear and 4LO. It just slowly eases you in. Same thing when applying gas in all gears, not just first, and it's nice in all gears, but particularly helpful in first. It's a little thing, but provides so much more control.