I like that Kriega 5 up front.  Do the straps running to the rear annoy your thighs while you ride?

Also, you don't need to drill the Nomadic Rack to hold a Rotopax!  The plate adaptor is only needed if you're attaching the Rotopax to a weak surface (such as the drywall in your garage or the sheet metal of an automobile) or if you don't have access to the backside of whatever you're mounting it to.  For a solid aluminum plate, you only need to attach the mount via the two bolts.  Like this:







This will also solve your rattling issue, since the Rotopax will lay flush against your rack.  Rotopax.com has a pdf instruction sheet on their website: http://www.rotopax.com/images/PDF/mounting_instructions.pdf