I use them to buy:
- HP and HP regen
- Focus and focus regen
- selfheal
- speed
It is just that when I make 5 10 levels digging, I want to use my points for the extractionplans, pros plans, care plans. Getting from 120-130 will probably cost me (30 min per lvl avg when digging straight on) 6 hours gameplay. T0 get 100sp in craft will cost me about 10 to 15 mins, depending on the tree and if I have the mats (although, I have just been digging for 6 hours).
If you want to get more sp and want to do it by yourself, go digging in several different lands and craft all mats you find. Grind your life away and before you know it, you are a lvl61 2h fighter with 2000 hp. Well, I am
