Which type of conga shell do you prefer, and why do you like it?

Wood. More natural resonance than fiberglass. But if you know how to tune drums , you can make a fiberglass kit sound as good as any wood kit.

ive used both wood and fiberglass bongos - i own the fiberglass and while the wood has a more distinct sound (to me) the fiberglass does a great job and for a player who might have to leave his drums in the car during class, there is no wear and tear from temperature like with wood…but…i would prefer wood if i had my choice

Greetings. In really fiberglass, (depending on the tuning), would deliver more soundwaves,  because it would have more vibration than wood, which facilitate the delivering of sound. If I have to play on a humidity environment,  it would be better because the wood and the real skin are affected by the environment. Gerry Zaragemca