the only setting where change maybe is need for is the gain setting. you could try differnt settings e.g. -10 50 45 40 35 30 etc. and see what gives you most aircrafts/messages. search forum for ‘gain’.
in most cases the default setting -10 is the best …
the pro stick plus is the same sdr as the generic but with amp/filter
I did the upgrade a while ago, if you are not using a Pi2 or Pi3 you may find the need to upgrade as I did, mentioned here The new dongle worked very well, no other changes to antenna or cables, other than the SMA connector at the dongle end. I then found I had MLAT timing issues which changing the Pi2 for a Pi3 resolved. Not investigated the cause, more important things in life!
All it took was a clean shutdown of the Pi and switch the dongles , then reconnect the power and voila, it works with great improvements ( X4 the number of airplanes ) in performance, but I guess the Antenna upgrate takes most of the credit for the improvements.