The flesh of the satans bolete does appear to bruise blue, not sure about the pore surface.

Most sources say the real B.edulis does not change color - but there was a little talk about a light reddish or brownish staining sometimes where the flesh is damaged. I would chalk this up to the B.edulis vs B.edulis-like distinctio

Anecdotal addition - in searching for B.edulis like mushrooms near Finland outside St.Petersburg my wife's uncle would cut the mushroom at the stem and taste it to see if it was bitter. If so, sadly, we left them, though i think parboiling might have solved that problem. These were not satans boletes but something much closer looking to the edulis.

Actually as long as we're on the topic - apparently some people in Europe and california seem to think parboiling the satan's bolete might make it edible - sort of like Gary's done with Amanita Muscaria. I for one am not going to try :)