No worries, at least it's not a 5.6
Never really seen the vocals as that much of a drawback - not the most soulful, I'll agree (though he's still one of my favourite singers), but that jazzy swing of his backing band's what does this good in my books. Each to their own anyway.
Still haven't got round to your album just yet, so I'll set a bit of time aside for that very soon!