From Robinson
http://www.robinsonheli.com/service_...s/rhc_sn29.pdf
and
http://www.robinsonheli.com/service_...s/rhc_sn11.pdf read this one carefully as first of all it warns against aft cyclic and then says do it very gently - even the manufacturers can't give consistent advice.
If your automatic/trained reaction is to pull aft cyclic, you might well chop off your own tail - straight from the horses mouth - good enough for you AnFi?