Kylies have a remarkable ability to compensate for a diversity of throwers while still performing fairly well. A soft throw with a low spin rate may stay aloft longer than one would expect, even on a hard tune throwstick, which is designed to be thrown very rapidly with a high rate of spin. But they are still an airspeed dependent instrument and smaller or weaker individuals may not be able to throw as hard as I do, thus limiting their ability to comfortably or adequately throw a hard tuned throwstick.

We offer our Karli Model in a "soft tuned" version so that weaker or more casual throwers may throw at slower airspeeds and still achieve reasonable results. The soft tuned karli model is tuned to 55 meters at only a moderate throwing force. If thrown at full force by a strong individual, it would climb well above the target into the sky, but if thrown lightly, it will glide into the target straight. We expect that soft tuned sticks will not have much more straight flight range in them than the basic 55 meters we tune them for, but achieving this distance doesn't require a very hard throw and so soft tuned kylies, while being lower performance throwsticks, are more accessible for a wider range of people. Soft tuning is a somewhat subjective standard for us to achieve and so soft tuned sticks vary stick to stick from each other slightly.

"Hard tuning" is our standard tune that we put on most of our throwsticks. Hard tuning is defined as a straight flight to max range at a repeatable and hard throw in perfect form, by myself. This is less than my (Benjamin Scott's) maximal throwing force, but very close to it.

Our advice is that most athletic individuals of average size, who feel they have a good arm and solid wrist should purchase either heavy or hard tuned throwsticks and learn to adapt to them. But for weaker individuals who would prefer something that flies at a slower speed with less power and range, we recommend smaller soft tuned sticks such as the soft tuned karli.

For extremely powerful or athletic individuals such as baseball pitchers or advanced tennis players, they will adapt to a hard tuned throwstick by throwing it at somewhat less than their maximal force, since at their maximal force, the stick may rise at range. Their excess strength means that they should have an easier time achieving accuracy, but no advantage on power or range.

Whether a throwstick is tuned hard or soft, if it is thrown improperly without appropriate velocity, adequate spin, proper wrist alignment, or alignment with the target, it will not behave as it is programmed to and may rise above or fall short of the target. Learning proper throwstick technique is essential to achieving the ranges stated for each model.