Desynth Issue

[LilaAquillina]

I dunno if anyone else asked or what not but, would be a possibility to provide an option to "Lock" one or two classes so that they are not affected when raising another class?

This, please.

Also, like Neri Feralhart said, this seems to happen whether or not we've reached cap. I thought, reading the patch notes, that I would only lose skill points if I went over the 300 cap. Now it seems like I can never get even close to that cap -- I can only desynth on one crafting job, forever and ever, because trying to desynth on a different one means I'll lose points on the one I have leveled up. That pretty much makes the 300 skill points cap irrelevant.