Chain question

[fazersharp]

I've just discovered that after being sat for a month my chain has developed 3 seized links ? I've worked them lose but it's time for a replacement anyway

So I was just wondering if anyone has noticed the difference between the VX Heavy Duty and the ZVM-X Super heavy duty DID chains? And if the latter is worth the extra £50??

Also is the recommended set up still DID chain, Renthal Rear and generic front sprocket? I'm thinking of getting the JT 'silent' sprocket this time just to see if theres much of a difference

I brought a silent one but not sure if it works or not because I cant hear it