So I’ve had my MM Stingray for years and love it. But decided to get an MM Sterling too because of the slimmer neck. I picked one up second had for a steal. I’ve been playing it for a few months but I’m starting to question its authenticity... MM claim the Sterling is lighter than the Stingray. But my Sterling really is noticeably heavier, like a lot heavier! Also I’ve noticed the paint cracking at the back by the neck plate and it’s cracked like a bit of cheap plastic would. Doesn’t look like a decent laqur job... It also doesn’t seem to play as well as the Stingray. The Stingray is effortless the Sterling needs a bit of a wrestle. My Sterling has the ‘Made is San Luis’ etc on the back and has the routed curve bit on where the neck joins. It has the Musicman bridge and but but I’m becoming sceptical. Anyone have any ideas... Thanks.