Jim Thompson wrote:
An XOR is a convenient structure to allow a control signal to invert
or non-invert another signal.

Trouble is (as classically done) inverting has 3 stage delays, while
non-inverting has only 2.

Anyone know of a configuration that has symmetric delays?

Thanks!

(I'm rolling my own at the device level so anything goes :-)

...Jim Thompson
Crazy idea..
NPN transistor with emitter to resistor to control signal, collector
with pullup resistor to +5; signal out at collector. Resistors of
similar value.