Yep, cue is different for sure, but he never really answered your shaft question. If you read over what you asked and what you wrote.
You said "if so let's do it", he said "You got it" which does not really say much aside from let's trade.
Then you asked about if they are straight and about the shafts, he said "Yes everything straight together and apart.", once again ignoring the shaft question.
I have no doubt he did not make a fair deal and should have send back the cue soon as you asked, but he also skirted around the shaft question without directly answering it. It SEEMS like he did , but not really.