The 3 in one works great,no multi step stages on certain situations.Hd speed with micro works great on a fairly swirled car.we all know how tough corvette paint is to remove swirls from.last week I had a 04 vette moderately swirled,and used HD on micro and a lot of pressure car came out like a 2 step process.I have 2 vettes this week and will post before and after.Im not a fan of micro pads cause I hate stopping to fluff them up after every panel.