If I were buying a custom cue I would not want it unless it was test hit by the maker To assure that it plays and hits up to his exspectations. You don't play pool without chalk so how can you test hit without it. I would never buy an exspensive cue that I could not test hit properly.
Simple hint USE BROWN CHALK.
If it is a production cue you are talking about I try to shape, chalk and test hit every cue before I ship it. WHY? because in my many years of working the booth at the Vegas tournaments when volumn of sales did not allow that, I have often times seen people return with the tip in hand still shellacked over and not shape. DUH?? If I do it for them before I ship, that possible problem is eliminated. NO SILLY NO CHALK RULES HERE!! Just keep it on the tip only and off the ferrule.
Your buddy's cue should be listed as recondition to like new, That's what it is. IMO the other cue is not used just because it has been test hit properly as long as it is not soiled by sloppiness.