I am a long distance track runner and need a cool pair of spikes that also are good. I have had the eldoret and didnt like the fit. I was interested in the zoom miler but that is a md spike and that probably wouldn't be suitable for the 5000 on the track. But let me cut to the chase I own a pair of puma h streets and they are 9.5 and I have a finger nail of room, should I go size 9 if I get the harambees. And how much do they weigh. If anyone has a 9.5 in a jasari in mod condition I am willing to buy also. Thanks for any replies and sorry if any of the info is useless.