Hi doctor,

since v1.68 is  the best for my rig, will you in the next release (1.71 maybe) to add an argument to run SRBminer to choose optimization 1 (1.68) , 2 (1.69), 3 (1.7.0), so everybody happy ... can use all program improvements you have made and mining new algos? OR better if you can make combined optimization from 1.68 1.69 1.70 with the best result for all   

thanks