Little Tuner Helpful

When I built the QRPGuys Multi Z tuner it was so I could use it with the Doublet I plan to put up (once I get a launching method) but then I thought I'd give it a try with my random wire since the Doublet isn't quite there yet.  The random wire is about 125' long, I believe,  and works very well on 30M but that's about it.  I hooked the little unit up via a short run of Co-ax to my LDG 9:1 Unun and I was able to tune it quite well on 20M and on 17M.  40M was not so agreeable and I didn't try 12 or 15 but if I were going to use this antenna and tuner together regularly some adjustments to the wire length would likely be required.  I tuned around 20 for a while and there was a lot of activity and I was getting a little over-zealous trying to reach a Brazilian station and also a few other DX stations but I really should have known better and stuck with something more domestic.  As it was, my battery was down to 10-11v and I knew my FT-817 wasn't even putting out close to 5 watts into a non resonant antenna...during poor conditions.   All that being said I was happy with the tuner and how easy it was to operate by tuning to dim the tuning LED.  As the LED gets dimmer your match is better.  It was super handy and I think I am going to enjoy using it.  Tonight I'll charge my battery and test it again on more bands on the next nice day.