I believe .removeObject() will be best, but if you decide to assign null to object references, at least do it with the least amount of lines:

>

*	None of the code hereunder helped in speeding up destruction.
>
>*thisform.lockscreen = .t.
>*thisform.visible = .f.
>
>*!*	with thisform
>*!*		with .oCntPage1
                        Store Null To;
>*!*			.cntPZChart.oDay;
>*!*			, .cntPZChart.oShift;
>*!*			, .cntViewSlider.oPZ;
>*!*			, .cntViewSlider.oShift;
>*!*			, .cntViewSlider.oWrk;
>*!*			, .cntPZSlider.oPZ;
>*!*			, .cntPZSlider.oShift;
>*!*			, .cntPZSlider.oWrk;
>*!*		endwith
>*!*	endwith

and so on...