diff --git a/docs/60-sps/index.mdx b/docs/60-sps/index.mdx
index 2310fbc..372cf45 100644
--- a/docs/60-sps/index.mdx
+++ b/docs/60-sps/index.mdx
@@ -26,6 +26,9 @@ full backward-compatible replacement for DPS (Dynamic Penetration System by Rali
   * Drag the new object onto the bone nearest the "base" or "bottom" of the area that should deform
 * If your mesh is un-rigged (no bones):
   * Drag the new object onto the mesh renderer for the mesh that should deform
+* *The plug mesh must be straight / "fully extended" in the editor!!*
+  * This is the orientation that will be used during deformation.
+  * If you wish for the plug to not be extended in the avatar's resting state, you can use an animation in the plug component's "Post-Bake Actions" box to un-extend it.
 * Position the new object so that it's located at the "base" or "bottom" of the area that should deform
 * Rotate the new object so that the "Tip" of the red capsule in the 3D view is at the "tip" of the deformed area