Generally the N has too much "groundspeed" to do the job that YOU hope to do.
With the tiller, as designed by Henry's bunch, when properly tuned, will puch the tractor in neutral. Most riders should take along something to read, though. Sorta like waiting for a long time to get the job done, correctly.
Hope this Helps.
John,PA PS: the handles on your small garden tiller are only for steering the tines. The machine will craw along all by itself.
I take a cup of coffee along on tilling jobs. Turn her loose and pay her for her work. Good looking after the hose-off.