yea i like the first one better too. i think we should just go with that one since everyone seems to like it. and if yous all agree, ill make the final sketch with the measurements and all but ill make the core a little smaller so the urethane will have more sidewall and wont get fucked if you decide to turn real sharp.
and i dont think the 'I' will be necessary. with the bmx-style sidewalls plus the fact that you can get a urethane to metal bond thats actually stronger than the tear strength of the urethane, i think well be set.