Hi, I might as well post here as well on your topic
In your situation I would go for the S620X. I really like the piezo on my RG2027, it's the same type! That guitar is more value for money, and if you like the looks better your decision should be easy....
I really like my S520EX, but the hardware rub is extreme (as is posted here earlier...)
Ik had het ook in het Nederlands kunnen doen, maar ja

Mazzels