I got this 5 string Ibanez GSRM25 Mikro Bass, tuned in F# standard tuning, that is 2 half steps higher than regular 4 string bass E standard tuning, that sounds nice acoustically and plays amazing, but that I haven't played much due to my dislike of the stock pickups.   It did help a lot to wire the 2 stock J pickups in series and wire them directly to the jack output socket, and it actually sound just fine now, however still not like I'd ideally want it sound, like a bit too polite, a