I went with the Traditional for my Nepsis NS-7 headless model because I could get a slightly wider string spacing. This allowed me to get just over 41mm from B to E. I don't like the narrow 40mm of most 7 string guitars. This piece is beefy and very well machined. Easy to use and very easy to install. Now they just need to make "Solo" headpieces for each string so we builders can really get the string spacing we like and to have a counterpart at the head for their Solo headless bridges!!!!!!