Is it okay to have only one crafting class per character?

[Taika]

So you pretty much need all crafting classes on one character to make all of the best gear/HQ items?

HQ items/best gear impossible/extremely difficult to get with out cross-class skills then?

You can complete any recipe without cross-class skills but for HQ you need them. With certain crafts leveled you'll get 100% HQ chance for all recipes. With only one class you can't compete with that. Leveling other DoH classes also gets significantly easier as you can use the high level cross class skills from other crafts from the start.

[NintenPyjak64]

Would also like to mention that the 2 star synths using the philo tome mats aren't worth crafting unless you can guarantee HQ them. Darklight far trumps NQ 2 star synths while HQ trumps Darklight