Can män som kan kanalisera andra män som kan kanalisera?

Män kan känna varandra som håller sagtin , men inte alltid mycket tydligt.

En av de försvunna kapitlen (Rahvin's PoV, emphasis min) berättar att även kraftfulla manliga kanaliserare kan känna varandra bara "dunkla" även när de faktiskt omfattar källan och mycket av det där:

Snatching at saidin, he filled himself with the Power, the taint on the male half of the True Source rolling off the protection of his bonds and oaths, the ties to what he knew as a greater power than the Light, or even the Creator.

[...]

Linked to saidin as tightly as Rahvin - this close Rahvin could feel it, dimly - Sammael eyed him warily. "I expected serving maids and dancing girls, Rahvin. Have you finally wearied of your sport after all these years?" Lanfear laughed softly into her wine.

-- The Fires of Heaven, Prologue: The First Sparks Fall

En av Rands möten med Mazrim Taim (Rand's PoV, emphasis min) berättar för oss att manliga kanaliserare kan känna varandra som omger källan, men - ännu viktigare för din fråga - att denna mening "bleknar" när den andra mannen släpper sagtin :

"Seize saidin. Do it. As much as you can hold."

For a moment Taim only looked at him expressionless; then the Power flooded into him. There was no glow such as women could see around one another, only a sense of force and menace, but Rand could feel it clearly, and judge it. Taim held enough of saidin to devastate the farm and everyone there in seconds, enough to lay waste as far as he could see. It was not much short of what Rand himself could manage, unaided. But then, the man could be holding back. There was no sense of strain and he might not want to show his full strength to Rand; how could he know how Rand might react?

Saidin, the sense of it, faded from Taim, and for the first time Rand realised that he himself was filled with the male half of the Source, a raging flood, every thread he could pull through the angreal in his pocket.

-- Lord of Chaos, Chapter 3: A Woman's Eyes

Som de andra svaren redan har nämnt finns det också Taims testning av Black Tower-sökande för att se om de har möjlighet att kanalisera. Han behöver skapa en viss väv och vänta ett tag för att känna förmågan hos de andra männen. Från samma kapitel (Rands PoV, betona min):

"The more Power that's used," Taim told Damer, "the easier it is to detect the resonance. On the other hand, too big a resonance could do unpleasant things to your mind, maybe kill you, so I'll start small." [...]

Abruptly a tiny flame appeared, an inch tall, dancing in midair equidistant between the three men. Rand could feel the Power in Taim, though only a small amount, and see the thin flow of Fire the man wove. The flame brought a startling relief to Rand, startling because it was proof that Taim really could channel.

[...]

Taim seemed intent, but on what Rand was not sure; he seemed to be listening. A resonance, he had said. Rand focused, listening, feeling for - something.

Minutes stretched out with none of them moving a muscle. Five, six, seven slow minutes, with Damer hardly even blinking. The old man breathed hard, and he sweated so much he looked as though someone had upended a bucket over his head. Ten minutes.

Suddenly Rand felt it. The resonance. A small thing, a tiny echo of the miniscule flow of Power pulsing in Taim, but this seemed to come from Damer.

-- Lord of Chaos, Chapter 3: A Woman's Eyes

Eftersom en sådan rigmarol behövs för att testa för förmågan att kanalisera, kan vi konstatera att

nej, män kan inte känna av ren förmåga att kanalisera i varandra.

Det verkar som att män inte kan anamma "talangen" i varandra, såvida de inte faktiskt håller källan. Det är en av flera skillnader mellan sagtin och sagtare . Men jag kan inte hitta någonstans som direkt säger detta.

Som du säger, i Chaosens herre lär Rand från Taim hur man testar förmågan att kanalisera i andra män och var bara säker på att Taim kunde kanalisera när han omfamnade källan. Han känner sig inte heller i The Shadow Rising , för afrikan för Asmodean som poserar som en Gleeman i Aiel Waste.