Disclaimer: Very early impressions/results.YMMV
Received the little eBay Bias-T board to power the RTL-SDR Blog Amp/Filter combo. There are other ways to provide the required 5V, but I chose this method.
It replaced an FA filter and ProStick+. Looking at the ADS-B Receiver graphs, it appears the SNR is 2-3 dBs better.
Again, very early results. I would very much like to hear from others experimenting with this combination.