Posted for "Paul Nafziger" <naf@britevalley.com>:

 All the turboprops I've flown had the gas generator (turbine) running at
 100% and the prop pitch was changed to change thrust.  Admittedly, I've
 flown only about 5 and that was some time ago, so senility may be a factor
 here.  Power response was almost instantaneous.  If the Walters operates
 similarly, I wouldn't think that lag had any effect.  Actually, I would
 suspect the opposite.  That power response is so rapid as to give inadequate
 time to react if you really cob the power at low speed.
 
 Naf
 
 Paul Nafziger
 LNC2 N7PN