How would I add strength to a weld that gets rotated by a point?

I have all the leafs pointing away from the point, but what I am trying to do is make it have an Intensity to each leaf and when set to 0 it goes back to its original position, and 1 as its strongest point towards. How would I ramp/strength this.

Here is the code i have so far:

local leaves = script.Parent.Leaves
local leavesData = {}

local windPosition = game.Workspace:WaitForChild("WindDirection")

function grabData()
    for _, leaf in pairs(leaves:GetChildren())  do
        local leafWeld = leaves.Part.Weld
        if not leavesData[leaf] then
            leavesData[leaf] = {
                Weld = leafWeld;
                C0 = leafWeld.C0;
            }
        end
    end
end

function blend(orginal, position, intensity) -- instensity is from 0 - 1
    --[[
        0 is orginal
        Anything between is the strength to position
        position is 1
    ]]
    local fixedPosition


    fixedPosition = position
    return fixedPosition
end

grabData()
while wait() do
    local Intensity = windPosition["Intensity"].Value
    local TopDirection = windPosition["Top"].Value

    for _, leaf in pairs(leaves:GetChildren()) do 
        local data = leavesData[leaf]
        local windDir = (windPosition.Position - leaf.Position).unit
        local squashedLookVec = Vector3.new(
            windDir.X, 
            TopDirection and (windDir.Y) or 0, 
            windDir.Z
        ).unit * Intensity

        data.Weld.C0 = blend(
            Vector3.new(data.C0), 
            CFrame.new(Vector3.new(data.C0), Vector3.new(data.Weld.C0) + squashedLookVec), 
            Intensity
        )
    end
end

Here is picuture of what I'm trying to do: http://prntscr.com/orbtvj