[Closed] Scripted Manipulators – Snap?

I’m currently researching scripted manipulators.

I found Bobo´s excellent Magnapulators package:

http://www.scriptspot.com/bobo/mxs4/magmapulators/

And a spline manipulator script, by Mark Young:

http://www.scriptspot.com/3ds-max/linemanipulator

I think scripted manipulators are great, I wonder why they are not more popular.
One thing that strikes me is the lack of snap support, none of the scripts and examples i found work with object snap (endpoint, etc).

I can’t figure out if there’s a way to fix it.

Mark Young has following line in the readme:

• Problems:
• 2. Snapping probably doesn’t work as you’d like since the knots are translated

•   according to the cursor *displacement*, not position. Need to fix this.
  

I tried to contact him, but the e-mail isn’t working anymore.
If anyone has a fix for that, of any hints, I’d greatly appreciate it.

Marc