As Maranock mentioned, davewil1964 is a regular forum poster who sells on another ID. Many forum posters ( myself included )  know his selling ID as it is not really a closely gaurded secret, and the information he has provided is Bona fidi. 

As for sales, mine are fairly consistent and basically at quite a good level at the moment. Ebay is keeping me fairly busy with a full day of packing today after the weekend. I do notice a throttling effect as others have mentioned with sales reaching basically the same figure on a 120 day rolling average, but it is a reasonable figure that I can live with. I dont really want too many more ebay sales or I will start to have trouble keeping up with it all and would need to think about employing some-one.

I have around 2000 listings which make up around 10% of OZ  listings in my catagory.  I moniter a couple of my competitors who also have higher listing numbers and their sales are travelling well at the moment too. Davewil1965 has around 800 listings so solid numbers there.  Some of the international forum discussions on throttling suggest that sellers with higher listing numbers are not affected to the same extent as sellers with lower listing numbers. Maybe this is a factor in the different sales results people are experiencing. It would be interesting to see what effect increasing listing numbers from say 200 to 1000 in a short period of time would have on the throttling of sales that many people see.