hi all i read the post since one year sorry for my english i found a interesting think but i does takes me further. in every elliptic curve like y^2= x^3+7 there is something interesting like :
if P(1,y1) - k times--> Q(-29/3 ,y2)
   P(2,y3) --k times--> Q(-3,y2)
 so on there is a simple math here where k is always too know independent from whcih curve we work .
 i don't want to give more information this operation is 10 times faster then k*G= and find the x value