Both are EN/LTF C certified. The line drag of the TRANGO X isn’t very different, as its hybrid 2.5-liner design is similar to the 2-liner system of the CERRO. Thanks to its HPR riser system, the TRANGO X offers the option of rear-riser control. Rear-riser control also works well for preventing collapses. The CERRO additionally offers the typical advantage of 2-liners: the efficiency of this control method when passing through turbulence. More specifically, the effect of gaining altitude while flying through turbulence. When comparing glide ratios in calm air, the performance of the 2.5-liner and the 2-liner looks quite similar. But when flying in real XC conditions, you notice how the 2-liner jumps up a few meters with almost every single air bubble you fly through. That’s why the CERRO delivers better performance. Another key advantage of the CERRO is its higher top speed and lightweight construction. So the short answer is: If you’re a C-class pilot who doesn’t use rear-riser steering very often but enjoys XC flying, then the TRANGO X is an ideal choice for you. If you’re used to steer the glider with the rear risers (or if you’re willing to learn) to squeeze a few extra kilometers out of your day and won’t shy away from any effort to reach the perfect launch site on foot in the first place, then go for the lightweight CERRO.