Hi, I'm in the process of picking out various options for a custom bass. And I've come to pickups. I love everything about Barts, so I'm going to get them. I have a Tobias Growler, and absolutely love the pickup/preamp on this bass. What standard Bart pickup would be closest to this pickup? How could I add a little bit midrange (adding another pickup?). Also, what Bart pre-amp would you recommend? (The wood I'm going to get is a Mahogany core, with Wenge facings). I want a growly midsy agressive tone. With clear highs, but not harsh. I generally play with a pick, and my attack is very heavy, to get the agressive tone I like.