There are many properties of this class that you can set which adjust how it stretches objects. This may prevent some distortion. After instance of class you can set properties. Or if you right click on the icon in the right corner of the form, it will pop up a window where you can dynamically set the set properties to see what works best for your purposes.
A couple of properties that may help
This.Resizer.lIsometric = .T.
This.Resizer.lResizeFontSize = .F.
I use this class and have found that it works very well on every control that I use.
HTH
Elmer