Apart from the fact you appear to have found a niche product(s) and market what I'm drawing from what you say Chameleon is that new listings seem to get attention from buyers.

To that end a while back now we ended a bunch of our slow mover listings (stuff that had once proven popular but had sagged in sales) and relisted them using the "Sell Similar" function.

Also made a few minor changes to the items so that it did not look the same when re-posted.

But the anticipated ("hoped for") boost in sales just did not happen for us.

I had read on these boards that this had worked for others but did not appear to do so for us.

I was at the PESA conference on the GC recently and what I took away from there was that there is a myriad of things that can affect Cassini rankings (either POS or NEG) and no single one of them will have any positive impact.

If there is a "one thing" it is item popularity and sales.

You can pay Google thru Adwords for popularity but I don't know of any way to "pay" Cassini.