Ok so i just installed the spb-3 on my ibanez bass...replaced the pots and cap as well...but am not really finding that p bass tone i was looking for....how does a spb-1 compare? I have an offer to trade my spb3 for the 1.....from what ive heard, its more of a vintage p bass tone.....current pot/cap set up is CTS 250K and orange drop .047