I have a TS-590S for 3 months now and absolutely love it.
I have 1 question though.
Do you guys also have relatively low power output in SSB no matter what you do with Processor input (Pro.I), Processor output (Pro.O) and PWR set to maximum?
On TX the 590's power output meter hardly ever shows more than 60-70 Watt out.
On the TS-570 I could read 80-90 Watt out.
Hope to hear from you.