[Elecraft] Anyone using WSJT with a K2?

[w2bvh]

Has anyone on the list used WSJT FSK441 mode with a K2? If so I'd like 
to hear about your experience.

I've tried it with a XV-50 that I recently built and so far have just 
limited success. I have decoded about 2-3 transmissions (plus another 
2-4 partials) over 3 Saturday morning "random hour" WSJT meteor scatter 
sessions on 6 meters, but so far no successful qsos.  I operated with 
the K2 set for agc off, usb, and filter OPT1.

My K2 is sn 1520 and was updated to the the most recent firmware at the 
same time as the XV50 build in order to accommodate the XV50 and the 
KIO2 which also had to be added to the K2 for 6 meter operation.

According to the wsjt manual FSK441 uses 882, 1323 1764 and 2205 Hz 
tones in its encoding. My K2's OPT1 filter has the 2205 Hz tone on the 
IF filters shoulder. By eye its about 3-4 db below the passband. (In a 
previous version of this email I attached a jpg of the spectrogram plot, 
but evidently emails with attachments are not permitted here. I can send 
you a copy directly if it would help).

Is it possible there is too much attenuation or phase distortion of the 
2205 Hz signaling element for easy WSJT operation?  I have the OPT1 
filter adjusted for the best sounding ssb voice signal (according to my 
xyl's careful listening). If it's necessary to move the filter up 
150-200 Hz for WSJT, it will  affect how my voice comes across in ssb.

What are my best options for good both ssb and wsjt operation with the 
K2? Are compromises required here or is there a way to get both good SSB 
and good WSJT?

Thanks in advance.

73,
Lenny W2BVH