There are many conclusions in reference to the bridge choice. The aluminum seems to have higher level of vibration transfer creating more punch but having less sustain.
â€¦ â€œPunchâ€ is defined as having more initial amplitude at the beginning of the note, which in other words means a note is louder at the initial moment the sound is produced
Maple bridge will compete nearly the same way with addition of preserving warmer tone and more sustain â€“ less punch? probably can not tell the difference if so.
KK Baby Bass applies both â€“ it is a personal preference of sound requirement and how versatile the bass is to be. Perhaps putting it down to sound choice will spell strings type along with the bridge selection.