Did ebay recently change the "best match" search algorithm?

Recently I noticed the best match search function seems to have really changed alot. Wondering if anyone else has noticed and if maybe they have changed the algoritym. Myself and another ebayer were pretty much dominating the top 3-4 pages of search results. Basically overnight all my items fell to being several hundred items deep under various search terms. havn't really been able to climb back up despite playing with different keywords, adding higher quality pictures, free shipping on everything, 14 day returns, etc. nothing seems to help. just curious if its just me or if anyone else noticed this as well?

also, i notice a lot of smaller sellers with cheaper items are getting top ranking where as before it was higher dollar items and bigger sellers with stores, top rated sellers, etc.

Double check your sort order each time you do a search.

I have made that mistake before lol but always catch it right away. I was definately under best match and not low to high or ending soonest or anything else.