I am not 100% sure about this, and I hope Sirspeedy chimes in, but as I understand it Harry W. decided to come out with the heavier model platter to appease the many who read Salvatore's review which knocked the lighter plater. A friend of mine had the lighter palter on hi TNT (mkiv??) and then received the heavier one. He likes the heavier one better then the lighter one (Salvatore was right). However, and here is where I may be off n=base....Harry W. prefers the lighter one. But please do not take this for gospel!!! Harry is a very ingenuous inventor and manufacture so I would suggest you try both. I believe your dealer should give you an accommodation to do this.
Rick (RWD)
Rick (RWD)