What is the most efficient method for detecting changes in game.Selection?

I am currently developing a plugin that relies on game.Selection changes to operate, but I am running into a few issues. Here are the methods I've tried:

Change events.

function newSelection()
	-----Implementation not shown-----
end

game.Selection.Changed:connect(newSelection)

This method does not throw any compiler errors, but it never responds when I change my selection. I can only be led to believe this is caused by the fact that the .Changed event only responds when the actual game.Selection object changes, not the game.Selection:Get().

Looping if statements.

local oldSelection=nil

function newSelection()
	-----Implementation not shown-----
end

while wait(0.25) do
	if game.Selection:Get()[1]~=oldSelection then
		oldSelection=game.Selection:Get()[1]
	end
end

This style works and has no compiler errors, but it still has two issues: -There is a short but noticeable delay when the selection changes. -Depending on the size of the game, the loop will slow the game down.

Does anybody have any other methods of a change detection? Thanks,

ChipioIndustries