sorry if i am a noob or i am not smart enough to know about farming
but, if u open AH from time to time, u can see someone by the name Ting is always selling stone (u70 red and blue) like 40-60 pcs each colour in one go. and it all takes between just a few days. is tat normal? tat u can find more than 100 u70 stones in tat short time?