Just see this new post at the DPR and I think it is worth reading for what it has been tested and shared:-http://forums.dpreview.com/forums/readflat.asp?forum=1036&thread=33562896To my surprise, the GP Recyko+ doesn't work in his K-x and he tested two brand new sets of 4!But in fact, as I pointed out when the K-x was first announced, NiMH is actually not a suitable solution for a super high drain