[Elecraft] Possible K3 over shoot on transmit

[Gary Hunt]

Just started noticing that occasionally the first character sent on CW will peg the watt meter on the KPA500.  It does not fault.  Sometimes a QSY to a different band or even a different band segment will trigger it again, sometimes not. Both of my antennas require my KAT500 which seems to have found acceptable matches for both antennas on the appropriate bands. It just uses a previous found solution when QSYing.  Trying to determine which piece of equipment might have an issue.  Planning on sending the K3 in for a check up but was hoping to have a K4 here first.
Any thoughts?
73, Gary KC9EE