"It was very deliberate. It was right when I got a white Strat. I used it on that and I used it on 'The Boy With The Thorn In His Side'. But 'Unloveable' was the first time I deliberately used that Strat sound for a Smiths song. I remember scratching my chin and thinking, Hmmm ok, Can I get away with this? You can particularly tell on that end. I used it on the outro of 'Some Girls Are Bigger Than Others'. But 'Unloveable' was the first of that whole row of songs."
Here is the complete score from the "Louder Than Bombs:Off The Record" book:
Here are the scans from the Complete Chord Dictionary:
Here's Oscar80lt on guitar.
Here's jl92509 on bass: