[Elecraft] KAT500 QRP Operation?

[NZ8J]

Just looked over the KAT500 manual and it appears from first glance that
it will not operate using a qrp power levels. Given the track record of
the current Elecraft tuners, I was very hopeful that it would so I could
utilize the antenna switching and superior tuning capabilities of the
Elecraft design in an automatic tuner.  Maybe someone in the know can
chime in and give a definitive answer as to if it will operate reliably
using low power in the range of 3 to 4 watts. Keeping my fingers
crossed..  Hi hi  :)
Thanks 
Tim
Nz8J