i dont think diggler SELLS as many parts as it seems he has a stockpile of the same old parts (look at his listings). He has had some issues with not knowing about the parts he is selling (compatibility).
My only issue, which is why I wont buy from him EVER, is that he buys individual parts off members (after lowballing them), then he sits on the parts to re-sell them to members for over inflated prices.
Other used parts slingers on here do the legwork and find skis, part them out, sell at a fair price. Plus they know a hell of a lot more about skis then diggler ever will.