A radio that needs 16A in operation, but 25 during tune is a
pain in the butt on a nominal 20A power supply with over current
protection that kicks in above 22A!

Myself, I never tune using full power. With my 706g, I either
put it on "AM", or reduce the drive to a pretty low level. I did the
same on my 730. Only with a good match would I ever test full
power output. I do the same with my tube TS-830.. heck, actually
any transmitter... :/
MK