Hi Ben,

Tks for the feedback!

> 1) Objects linked to the splitter are resized with each mouse movement. It will be slow if the objects are containers with many complex controls inside. How about doing the resize only on mouse-up? (Of course you have to add an extra visible cue to show the splitter movement before mouse-up.)

I'll do some tests about speed.

Default windows splitter behavior is resize the objects while mouse is "moving". There's a class from Gerald Santerre (here in UT) that does the resize after mouse move ends, but I prefer the windows splitter behavior.

> 2) Inside the Moved() method, you said checking variable type is slower than a Try...Catch. The following test code tells us NOT to use Try...Catch. Adding a property as a flag for checking if GetReference() has already been run may be the best way.

I'll change this.

Again, tks for you suggestions!