aaron, um, if youre wondering about how much of a difference it is between the 450 and it, id say not enough. and with there being less spokes than the 450, probably better to run the 450. when i laced mine, i had a 305 hub also, and i chose it that way just for the 4 extra spokes.
i'll weigh it anyway. i just ahd aconversation tonight about 305-vs-350 bike weights. that id really like to know.