as i said - it is strongly material dependent
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here’s what i said pictorially
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if you take any loop (simple sin firstly) and trim at zero crossings
irrespective if you select N waves or N+1/2 waves you WILL get really obvious clicks in either normal or pipo (or both)
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only a cosine (N+1/2) will loop seamlessly in normal AND pipo
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i’m just trying to say look at the material - especially low freq content
tuning well for normal looping does not guarantee good pipo playback !!
don’t ‘wtf’ the OT until you test it in the DAW
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if you trimmed white noise it would not matter, some material will play nicely both ways, some not