I'd say if you're happy with it, there's no
need to mod. But hey, just because you're happy eating burgers and pizza doesn't mean you shouldn't try sushi. And you might be happy driving a Kia, but that doesn't mean you wouldn't appreciate a BMW if you drove one.
My 2004 MIA Precision has two additions: a Hipshot drop tuner on the E string (which anyone can install), and a Lindy Fralin pickup. Both are worthwhile, but many won't need the drop tuner. The Am. Ser. pickups are quite good, and I still have mine in a project fretless P. Great classic tone. But I think many players would prefer the Fralin or something similar. I certainly do. It has much higher output, and greater clarity everywhere but especially in the lows. It hits harder, yet maintains a vintage vibe. It records exceptionally well. So if you find yourself wanting something like that, give it a try. If not, cool. It's a fantastic bass out of the box.
