I was using a QRP Labs QMX plus with a Sparkplug UNUN to a 20 EFHW. I was running CW and FT8 (used FT8CN on my Android phone). I usually operate ftom car, so this was my first try at something I could carry in a backpack.

I hear you! I started with a qcx plus from qrp labs which I built myself. Pretty much stayed with qrp labs since. I used a dipole in a tree with a cb swr meter. If you are ever in N. GA and want to give POTA a try, give me a shout.