Anyone use either of these products? I'm wanting to try them, and am wondering how agressive they are. Ron mentioned the PF machine Polish is similar to the old 3M FI-II, did he mean the FI-II finishing material? Is it similar to megs #83(more agressive, about the same, less agressive) I also asked about the Pre-Conditioner and he mentioned they were changing the label, got off on a tangent, and started talking about other things and I forgot to just ask again. So can anyone compare these to meguiars products as I'm more familiar with them. Thanks a lot.