At one time on this forum there was talk of the STS machines when they came out with I think 60 series and had a new radiator door that was the new down draft design, instead of louvers on the side. Deere I think came out with a kit for the older machines for those who wanted to add the new radiator air scoop. My question to those who either changed their machine over to the new setup, or had machines side by side in the field with both old and new doors,, How did the new setup work??? My concern is the amount of dust and debris my radiators pass is wearing them out quickly and I have dry climate most of the year so corrosion is not an issue. Im thinking of making changes to help my problem, Also do the air filters stay cleaner longer not sucking so much dirt form the side of the machine?