[Hammarlund] HQ-129x IF alignment

[RJ Mattson]

I'm ready to do the tedious HQ-129x IF sweep alignment procedure suggested in the manual but wonder if the following method I found on the internet Eham site might work?

Eham dot com post by tailstrake
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"I have found that alignment of the I.F. must be to the crystal selectivity bandpass and not just to 455Khz. This is crucial. If it is not right, using the selectivity kills the radio's sensitivity. Set the RF generator frequency to "S" meter peak with the selectivity on a mid setting, phase at zero. Now turn off the selectivity, and align the IF cans.
Done right, you can split hairs on 20 meters with the selectivity."
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I do have the 455 sweep equipment but dread doing the setup and the re-learning curve :-)
Any opinions?
bob...w2ami