Don this year I run 04 8010 beside 07 9070 and the set-up is quit diff. case has several rad's compare to nh ,this will restrict airflow/speed result clogging up. Chopper side discharge is no benefit either.The engine platform on the older model's keep more chaff/staw around airbox.
Got 110 hrs on so far and indeed rad on nh stay's clean. More air capacity would help for cleaning but for the nh you don't need it just blow out airfilter and your good to go for a long day.
Snorton