From what I understand every level in Desynthesis counts towards the 300 point total, and all classes 30 (40?) + automatically have a desynthesis level of 1, which counts towards the 300 maximum. Which means if you have all DoH to 50, you can only get 2 classes to 100 and the third one to 95, because you'll have 5 classes with a Desynth level of 1.

In addition to that, simply leveling a class' Desynth skill has the possibility of lower another class' skill by a small amount, even if you haven't met the 300 skill cap. Check this threat out http://www.reddit.com/r/ffxiv/commen...ing_under_cap/

Is this true?