what you will want to do is to discharge at 20 amps nomore than that..you will read from big time batteries companies to discharge at 30 to 35 amps. All this will do is cook your cells.
discharge at 20 amps to .9v/per cell or 5.4v/ for 6 cell pack. Let pack cool down and then discharge at 2amps to .9v/cell or 5.4v/ for 6 cell pack..
There is a battery company just north of me and they are VERY knowledgeable and they will not bs you into the number games that the big time battery companies do...