In my video review I mentioned the Yamaha Pianica having notes choking from moisture build-up. However after spending more time with it I’ve noticed it was the same few notes. With the cover off and blowing in the tube I could actually see moisture bubbling up around the reed. After reading Alan’s post on gapping I’ve tried gapping those reeds a little further and hopefully that has taken care of the problem.
If moisture build-up is the only concern you have that’s keeping you from the Yamaha I wouldn’t let that stop you. It’s currently the best quality for the cost out there.