I train all crafting & gathering classes at the same time. As a result i have a lot of troubles with planning, my head is unable to keep such amount of information.
I can compute amount of necessary ingredients and parts only if i have information about nesessary number of crafted items of each type. Just now i can do it for 1-2 levels because i see real number of exp when crafting.
Additionally i have separate gil plan - it differs from levelig one. And i need to know how much gil i will need to spend for materials and ingredients for crafting leveling.
And i don't see any restrictions for trying HQ in this situation, but it doesn't solve main problem - how to determine required amount of crafted items before i reach concrete level and will be able to see it during crafting.