SplineTools has been upgrade to version 1.3. In additional to adding MAX 2017 support, this version adds the following functionality:
New spline modifier than will mirror splines (and weld if desired) using a mirror gizmo object.
Option to show the spline normals (if present).
New adaptive up vector implementation, greatly reducing spline “pinches” with complex spline paths.
Coinciding with this update, the freeware plugin Influence Helper has also been updated.