Load testing isn't meaningful on LiFe packs because they keep their voltage up so well. By the time you actually get enough draw down for the load test to tell you anything, the battery is almost gone.

CG, cycling is still a useful tool for checking the capacity of your packs. True, the batteries themselves don't need it like NiCd's do, but if you are wondering about the health of the pack a cycle test will tell you if the pack is indeed delivering the capacity that it is supposed to.