I think your best bet is to let something like a tuner run 24/7 for a week or less (volume is not important) to see if there is any break in improvement. As Thorman stated, sometime theres improvement and sometimes not. I have no experience with the wbt nextgen copper binding posts.
binding post break in
yesterday I replaced my binding posts on my rogue audio m150 monos with the highly regarded wbt nextgen copper binding posts and yes there was more detail,but it was also thin and not as harmonic and rich, and not as open sounding as before. I have been listening to the wonderfull sounding kenny burrell guitar forms latey and have really liked how it sounded on my system,but after I put in the wbts his guitar sounded strummy and hooded , the higher strings sounded thinner and the middle and lower strings sounded sucked out . well crap. is this another case of [ it needs 256 and a half hours of break in and then it will sound great!] or what? has anybody out there had any experience with these binding posts ? I am very good at soldering so i dont think that a bad joint is the reason I am hearing what I do, any ideas ? is there a richer sounding binding post with some body and still very good low level detail ? or will they really change that much with some break in ? thanks , chris