[quote name='Bronner' timestamp='1426897189' post='2723348']
Now that the decades have passed since getting rid of it; I've come to realize that McCartney probably played this bass because they made him a left-handed copy. He got it free. That's all there is to it.
[/quote]
They initially wanted money for it though, but yes it was a freebie. He's since started using other basses, which were also freebies. What company wouldn't want the world's most influential bassist showing off their wares on stage? You'd be daft not to give him a freebie.
McCartney has said in interview "It was the first left-handed bass I´d ever had, ´cause the Hofner was a converted right-hand. It was a freebie and I loved it". Why put it on Rubber Soul, Sgt Pepper, Revolver if he didn't?