I'm getting dissatisfied with the sometimes limp tone of my MTD Heir. Sometimes it just sounds weak. The Heir is currently wearing a partially dead set of D'Addario XLs. Before I slap on another set of the same old thing, could someone recommend a string which may have more definition and body? For what it's worth, I'm running through a SWR Workingman's 12 which sounds great with my other two basses.