Talk:Cross-Synthesis/@comment-53539-20180714214627/@comment-53539-20180715070425

My theory is due to all the bugs and LQ results EVEC produced when it was used between certain vocals. Essentially XSY is like playing darts blind folded. The vocal you got wasn't ness. useful nor was it practical. I kept updating to add reported bugs and as you can see, they just kept growing over time.

The issue is to get the best results you need two vocalists who sound almost the same, but then why use XSY at all? Then there are vocals like Cul or Gachpoid who were real hard hitters with no way of telling how they would impact the vocal. In short not only did you have LQ results when the vocalist produced the biggest variation between them but you had a lot less control. However, to me XSY was at least unique in that it was a rare function pretty much Vocaloid only had. In the end it wasn't used as often as some likely thought it was and wasn't as good as it seemed. The new Type + Colour function is better controlled then XSY and is honestly what Vocaloid should have done in V4 to begin with, but XSY remains the only thing that was pointless to remove. It was literally THE big thing about V4, otherwise V4 didn't offer much.

The other theory I have is basically my biggest noted throughout V4, especially late engine, and I even did a poll at VO over this, that XSY was a tough love if a vocaloid only had 1 vocal or limited options especially when XSY groups were introduced. Why would you buy Sachiko when Una had two XSY capable vocals and they could XSY with most other AHS vocals except Yuki.

I know Job pug-ins are also gone, but that was in some sense a more useful function then XSY.