SuperTie XV (our Medium System), with a 15,000 pound ultimate tensile strength, is identical to, just larger than, the Light (6000 pound) System. The fiberglass Rod of SuperTie XV is 1/2 inch in diameter, and the Grippers and Wedges are larger, in order to accommodate  the 1/2" diameter Rod. Components of the Light and Medium systems are not interchangeable.

Do you see the Tie?

Many contractors prefer to use SuperTie XV because a lesser quantity  of ties are needed for the same job, when compared to the Light System. For example, with a standard concrete mix (viz. concrete that reaches initial set in one hour), if concrete is placed at 5 feet per hour, a 24 inches on-center pattern is commonly used with the Light System, but with SuperTie XV, the same job will allow ties to be spaced 36 inches on-center. This results in less than  half the total number of ties required.

SuperTie XV components cost more than Light System components,  but as a lesser quantity needed, materials costs per job are nearly identical. Yet, with laborers handling less than half the number  of ties, you'll find your overall costs to be even lower with SuperTie XV.