Arm
As an experiment today flew with a customer who had not flown for 14 months. Flew at 1000 ft agl over airfield ,70 kts in a 300C. I chopped the throttle with no prior warning. Customer ( tt 70 hours, not trained by me)dumped lever as ac yawed about 40 degrees to the left. RRPM down below red line about 380 rpm. He flared back with the cylic bringing rrpm back to about 410 rpm by 800 ft and 50 kts. By 600 ft the ac was rrpm of 480 rate of descent 1600 ft per minute, fully stabilised autorotation.
So I am afraid I do not understand where 1000 ft comes from, unless an R22 is the subject of 1000 ft . If that is the case I will eat humble pie and offer a sincere apology