lfp quick change lower pulley vs jlp lower

[White Whine]

if I am going to replace my 6# lower jlp pulley and go to a 4#er, if this is just gonna stay on like that should I stick with jlp or is there a benefit to the lfp quick change kit? why is the kit cheaper than a pulley alone from jlp? anyone wanna trade a 4#er for a 6? :-D

 

[boostdacr]

if u plan on switching them out get the interchangeable...if not get the jlp or really it doesnt matter