Diogenes Laertius:
"...the Logicians [he called] ‘The destroyers,’"
[24] Metrodorus’ writings were as follows:
Three books _Against the Physicians. About Sensations. To Timocrates. Concerning Magnanimity. About Epicurus’ Ill Health. Against the Logicians._ Nine books _Against the Sophists. Concerning the Path To Wisdom. Concerning Change. Concerning Wealth. Against Democritus. Concerning Nobility of Birth._
[31] Logic they reject as misleading. For they say it is sufficient for physicists to be guided by what things say of themselves. Thus in _The Canon_ Epicurus says that the tests of truth are the sensations and concepts and the feelings; the Epicureans add to these the intuitive apprehensions of the mind. And this he says himself too in the summary addressed to Herodotus and in the Principal Doctrines. For, he says, all sensation is irrational and does not admit of memory; for it is not set in motion by itself, nor when it is set in motion by something else, can it add to it or take from it
All the "logic" references in Diogenes Laertius are "dialectic" (διαλεκτικός etc) in the original which I take refers to the conversational/dialogue method of getting at the truth, not Aristotelian formal logic.
Plus, induction is a kind of logic which appears to have been endorsed by the Epicureans.
If the Authorized Doctrines be read item by item it may be observed that almost all are contradictions of Plato
I'm still not convinced of this.
Still reading, more later.