I'm not sure - if I was, I must have experienced the Buddha's perception at least once - but:
how should a Buddha not perceive anything? My teacher told, a buddha perceives differently than we ordinary people do. He said, a buddha perceives it all at once.
So I suppose, if we agree that we don't know the real meaning and consequences of "to be utterly void of concepts", then there is no need for a long discussion anymore.
How could a Buddha give any lecture if he wasn't able to use concepts as a measure?
He must not be bound by concepts to do so.
erm...flipping back and forth isn't Buddha's perception..remember? It has to be "simultaneous" perception.
I don't intend any long discussion but I feel that I am bad in articulating ideas well so it might be unfair for Gorampa...so maybe one last attempt.
The Buddha does not perceive of anything from their own perspective at all (since there is no more self,"own"). However, all the perspectives of every beings are not excluded from "his knowledge" and he acts beneficially accordingingly to each sentient being perspective..so to sentient beings it might appear that he has full knowledge, omniscient and appears that he is using concepts but in fact those are just spontaneously responses arising out from Dhamakaya.
ok..period for me. if it is a wrong representation of Gorampa's view, is all my fault but I swear that I read it in English ...so probably is the lotsawa's fault.