to really think that Rav Shach would send a talmid to the Rebbi of the habad hasidim – like you obviously claim :
is similar to deny the existence of the sun in broad daylight.
Which sadly is the modus operandi of the habad apologists whenever faced with evidence contradicting their propaganda aims .
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Which explains one [of the many reasons] reason why you guys lost and are continuously losing your heskat kashrut .