I keep Sansamp product with my clean rig. I tried it in front of the Rumble. Once. It's not that it didn't sound good, it was just unnecessary.
How do you make a P-bass sound like anything but a P-bass? It's the ANSI standard sound. A Rumble makes a fair pair with a Precision for your understatement of the day. Get a tweed cable for extra vintage.
How do you make a P-bass sound like anything but a P-bass? It's the ANSI standard sound. A Rumble makes a fair pair with a Precision for your understatement of the day. Get a tweed cable for extra vintage.

Just as soon as @Gravedigger Dav makes his rounds.
But I would find a way to buy one if they did.