Firstly, it’s the ergonomics. The Mustang feels bigger than the ‘Ray and despite the more limited upper access, this doesn’t seem to be a problem, in fact I find the ‘Ray a bit cramped up there, as my body gets in the way. The ‘Ray is a great instrument bit, by comparison, feels a little toy like compared to the JMJ, probably due in no small part to me being a slightly bigger bloke (6’) and I really like the JMJ’s slab body to rest my forearm on, whereas the ‘Ray is much slimmer and doesn’t work quite as well (it’s absolutely fine really, it’s just me but the Mustang feels right). Then there’s the tone, whilst at home there doesn’t appear to be an awful lot different tonal difference with the ‘Ray set to single coil mode, but live and at volume the Mustang has more fundamental and pronounced low end, that you could describe as vintage, which is perfect for my current band and gives me confidence because I can both hear and feel it. The ‘Ray wins the weight battle easily, being lighter and better balanced, has more tonal options and is better suited to more modern production styles. However, the tonal limitations of the JMJ make me work harder to achieve the required tones with the tone control and hand position and I like that aspect.