Update on my Myers Pickup experience...
I don't remember if I mentioned this before, but I brought it in to a luthier buddy of mine who makes custom ukes. We hooked it up to the PA system he has at his shop and we had to turn down the volume to see if it was even working... which it was... very very accurately. These pickups also work really well for singing... which I'll probably use my Feather Series for or sing into my Grip Series.
Word of warning... DO NOT USE SUCTION CUP on a cedar top unless you are cool with dings. I tried it on my Pono Baritone with a cedar top and digging into the soundboard to get under the suction cup left some dings
... such is the way of cedar...
Also, I've found the best position for me for the Grip Series is on the side closest to your face, ideally using a 90 degree plug so the cord runs behind your uke. Also, wiping off the surface of your uke and the suction cup, then applying a minimal amount of water to the suction cup before sticking it on your uke greatly helps suction. For example, I ran my index finger through a running tap quickly and rubbed the water on my finger on the the bottom of the suction cup.
The best place for the mic for me, at the moment, is right below the sound hole and above your G string. I've found that I have more chance of feedback having the mic inside the soundhole. Most definitely request a foam wind guard when ordering because if you don't have one, the mic can vibrate with the soundboard. The foam mic cover will act as a cushion for this. See pic attached for reference for position.