matt can you get your hands on a discharger like the ctx-d or smart tray etc? i would suggest you use one of these to equalize the cells and discharge them to .9 and give them their first charge and then discharge them again on the tray to .9 and put 1/3 charge back into them, ive found this is a very good technique. then once you go to charge them again you could either use the spintec or tray from .9 and they should bring you good results.
Kyosho STRR / OS Speed
Mugen MTX-4R / RB Speedline Matrix
Jammin CRT.5 / Sirio STI