[Elecraft] K3 - Maximum CW speed from manual key

[Kurt Theis]

Greetings list!

I searched the archives and other sources, but haven't found an answer, so
I'll try here.
I'm looking to find the maximum cw speed on my K3 (with new oscillators,
serial 8xxx)
when using a manual cw key plugged into the KEY jack on the back of the
radio.

I don't mean the internal keyer, or memories. I'm not using QSK, so that
won't be an issue. The K3 is put into TX mode via an external TX switch,
and keyed via the KEY jack.

I'm hoping for speeds in excess of 300 WPM. Possible?

-- 
theis.kurt at gmail.com