Maybe a browse through the following might be in order for some:
http://www.caa.co.uk/docs/33/CAPAP2003_01.PDF
Dealing with TRFs is another one of those topics that generates inordinate amounts of ill-informed drivel - sadly.
Be under no illusions as to how quickly the transition, from apparent control to loss of control, will occur as you slow down. Torque is increasing exponentially while vertical fin authority decreases exponentially. That's a bad combination!