With the heims rotated in one direction they have more then enough travel to twist the opposite way. Actually more then needed. They allow for more of a drop if using the large heim with tappered spacers to let them travel.
Every sprint car relies on Heims for all suspension movement. Even the W link. That is all we use. You just have to know how to use them. Having removed the rubber bushing from the equation and only relying on the washer in front of the small heim will concave the k-member when hitting a pot hole. If making the strut rod solid, Brackets and bolts should be used to strengthen the k member as shown.
In the picture below the arms are on the stops and the heims are at full twist in that direction. When rotated they travel farther and easier then any other strut we have tested. been using heim ends for a long time. You just have to use them correctlB
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