That's the shape of the sand, dude. If it made it runny and drippy, the sand fending off the lower entons would also be runny and drippy, which they clearly are not. And yeah, I'm aware that you're mostly stressing the same points, but what I'm telling you is that until the arrow has been shown penetrating Gaara's sand, then it's simple speculation. Once again, I'm not applying anything logical due to the fact that flames in no way can increase piercing capability, yet they supposedly do in this manga, so.You must be registered for see images
Notice the Sand holding the flames is runny and dripping. The sand also instead of blocking the flames as a wall indents and appears to be softened. The flames clearly show a difference in Sharpness in the Susanoo Arrow than the original[You must be registered for see links][You must be registered for see links]. The Enton Sword made solely of Amaterasu flames showed to have clear piercing capabilities alone[You must be registered for see links], to in twine them together clearly as shown in previous scans to be sharper. The Sharper something is the greater it's penetration capabilities. These are things I mentioned in my previous posts I am not saying anything new.