Ask a Thief Thread.

@bucket, Do you suggest that i shouldnt max meso up or shadow mesos?

Shadow Meso you can skip entirely, Meso Up you'll put points in but not right away. It wont make you billions simply by training but it'll add a bit of income throughout the time of murdering innocent monsters which is always welcome, and there's nothing else remotely useful to to put points in.
Basically by the time you're 120 you'll have maxed everything except Shadow Mesos which doesn't deserve more than one point, ever. The remaining ten SP you could use to max Dark Sight if you haven't which is infinitely more than help than anything else you can do at that point.