I have a very, very old set of Chromes on a P bass. They are perfection.
I fancied the 5 string experience. So I put a set on a 33" bass I have. This has a bar behind the nut as an all purpose string retainer thang. It was horrible. They were tight and super unforgiving. Was this because of the vicious break angle behind the nut? This does not feel like an issue with the round core nickels I have on the bass usually.