[Elecraft] K2 SSBCAPKT: 2.4kHz or 2.6kHz SSB bandwidth?

[Ron D'Eau Claire]

John W4PAH asked

One mod I'm planning on incorporating in the
KSB2 module is the SSBCAPKT, which allows for either 2.4 or 2.6 kHz
SSB signals...

I'm wondering what I will be gaining/losing in either case. If I can
do 2.6, should I do it?

Any experience/assistance is appreciated.

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I find the wider bandwidth to produces nice signal. 

My thinking was that if I'm going to open up the bandwidth beyond the barely
usable minimum around 2.2 kHz, I might as well go to 2.6 kHz to be
consistent with other SSB rigs. 

Ron AC7AC