[Elecraft] KAT500 usage model?

[Jim Miller]

What sort of feedline and antennas are folks expecting to use with the
KAT500?

I assume OPs want this because they are running more than a barefoot K3/100.

Are folks running 500w at elevated SWR on "normal" coax (e.g. davis bury
flex), open wire line or 7/8" hardline into the shack?

I assume that much of the 500w usage is into nominally resonant antennas.
What other types of non-resonant antennas are in use at this wattage level
that would need such a tuner in the shack?

Thanks

Jim ab3cv