I used to have the V spec.. pretty much the same thing (made in Japan vs Taiwan).

With most fmic, you will face higher water temp. And also quite a bit of trimming with either stock or 99 bumpers. I just sold my v spec and went with blitz fmic. But to be honest, most upgraded smic will do just as good as these fmic. I like the blitz vs slightly better as air flows to the rad better and pipings are shorter.