CFrame help for my ability script

[Vyvorr]

So I am creating an ability for my game and so far it looks good, the rocks form and animate well as you can see below.

https://gyazo.com/5cef1f58b36a4d569bc8efa24318e37c

The current code for this is here:

local faultLineRock = abilitiesModel.FaultLineRock
		local rootPartCFrame = humanoidRootPart.CFrame
		local rocks = {}

		for i = 1, 4 do
			local copy = faultLineRock:Clone()
			copy.CFrame = rootPartCFrame * CFrame.new(0, -10, -6 * i)
			copy.Parent = workspace
			table.insert(rocks, copy)


			local properties = {
				CFrame = copy.CFrame * CFrame.new(0, 8, 0)
			}
			TweenService:Create(
				copy, 
				TweenInfo.new(0.4, Enum.EasingStyle.Back, Enum.EasingDirection.Out, 0, false, 0), 
				properties):Play()
			task.wait(0.1)
		end

		task.wait(1)

		for index, rock in pairs(rocks) do
			local properties = {
				CFrame = rock.CFrame * CFrame.new(0, -10, 0)
			}
			TweenService:Create(
				rock, 
				TweenInfo.new(0.4, Enum.EasingStyle.Linear, Enum.EasingDirection.Out, 0, false, 0), 
				properties):Play()
			task.wait(0.1)
			rock:Destroy()
		end

So I am currently trying to figure out how to angle each rock however when I try changing this line:

copy.CFrame = rootPartCFrame * CFrame.new(0, -10, -6 * i)

To this:

copy.CFrame = rootPartCFrame * CFrame.new(0, -10, -6 * i) * CFrame.Angles(math.rad(45), 0, math.rad(45))

These are the results:

https://gyazo.com/b8631469eefc61a84d6ea20e83ea6ffe

So how would I go about angling the rocks while still maintaining how they are positioned and animated like in the first result?

[Vyvorr]

Nevermind, I solved it by using a Weld and :PivotTo()