@stevie is a friend, together with @Phil Starr we have collaborated on many projects,discussing various designs over a decade or so. That led to the creation of @stevie 's LFSys. The conversations often covered the tweeter/no tweeter discussions. @stevie always insisted that tha right tweeter/horn combination, tuned for dispersion is the way forward and he eventually won both me and @Phil Starr over.
Whether you go FRFR withe a decent PA top or a well designed cabinet, dispersion is the key to hearing yourself and being heard. So whether you keep you bass amp and add a good cabinet or go FRFR, you will really notice the difference.