Bush Wacker? It is a high dollar short machete, but it can darn sure do the job.
For longer blades, I'd just get a cheap machete. A thin blade works well and keeps the weight manageable. Some things just don't need improving. BTW: I have 2 BWMs, so you know I love them! The DFLE and M9LE work well in that mode, too. Haven't tried any of the newer models.