From what I've heard about Thompson I think 241 is a good weight for Klitschko. He's going to need to be able to be mobile and unless he comes in at 220 or something like that he's going to have his power. If Thompson is indeed a speedy guy perhaps he's thinking the opposite; be heavier to add a little more 'oomf' to his punches. Wlad won't be able to tie him up like he does his smaller opponents. Wlad will have to use some head and hand movement to stop or dodge Thompson's punches.