You both (@PapaCurly & @AstridHandbikebee63) are very welcome.
The problem described in point 3 seems to be most frequently found in harps that have narrow reeds, such as the stock, unmodified Suzuki Manji and Pro Master models. It occurs most often when playing overblows, but can occur with any bend. But I also have some of these harps that do not show this, so I am guessing that it is an unpredictable manufacturing result that is difficult to catch during quality control.
Regards,
– Slim 