What workarounds? The vast majority of users have zero problems with the genuine Huanyang VFD's. And most problems are self inflicted.Reading about the HY inverters, I'm not liking the workarounds
Afaik, a better (more expensive) VFD won't really make much if any difference with these cheap spindles.
If you want to spend 2.5x more, the Hitachi has been the most common for users in the US. Lots of Hitachi users here in the forums, including several in the last year.