Technically, the techniques used to build a custom are more advanced than those used to build a 62. Some believe this makes a better horn others (like SA) think not. For example, correct me if I am wrong but I believe the the Mark VIIs where made with more "advanced" techniques than the VI's but the majority of saxophonists consider the VI a better horn.
I have never tried a 62 so I can't give an opinion.
I have never tried a 62 so I can't give an opinion.