it realy was easy to farm the upgrade stones there was no need to cash to get enough stones to upgrade your full equ to + 10. My friends and me had only +8 but we still managed to get 2nd in budokai and get cc 140. Moreover if you can´t break your items then the only thing you need to do is farm approx. one week to get your full equipment to +12.
yup and i think no one week but two days for 70lvl and +15 gear bc stone farm its too easy on alpha i everywhere hear upgrade stones loot sound and without broken 5-10 stones and u get +15 too easy