At the moment I will take the predictable 3G any time.
Those "predictable 3G" might be expected when landing on a flat, unobstructed, suitably firm surface (provided the darned thing actually works, etc etc, see previous post). But once you pull the chute you no longer have any control over where you land. You could just as well end up in high trees, power lines, on a road 30 feet in front of a semi, snag a wing on an obstacle causing you to land upside down, end up in water, and so on. No 3G then.