I wouldn't be in a hurry to try and regain it because apparently, as of yesterday (Wednesday), if you're a Top Rated Seller or a Powerseller, you lose the 3 free relists. 

As a buyer, I couldn't care less whether people are TRS or offer premium service. As long as the seller has good feedback and they post within their handling time, that's good enough for me.

I actually upped my handling time to 5 days to take the pressure off. I still try and post same or next day, but due to the nature of my job, that's not always possible. It also fattens out that ridiculous delivery estimate that eBay puts in the listing. You know the one, it's the one that the buyers take as gospel.