I have a White ShuangRen v1. Nothing has been done to it except some Maru and Traaxas 30k on the pieces and some tensioning (slightly lower tensions). I have owned the puzzle for a month, but have not done many solves as the feeling is not to my liking as much as my other 3x3s. I do not have a photo right now, but I will upload one as soon as I get back to HK. It will go for ~17-20USD +Shipping. Payment method will be PayPal. If you want, I can send you some of my Maru or diffriential oil from my local model shop for free.