My Newton's several years old, I'm not sure what model they are, lets just call them "Boughten Speed"Mizuno Wave Riders and decided to dust off the old, almost new Newton's and do a little comparison, no doubt about it, the Newton's are faster.
Here are my two Newton runs:
My two Mizuno Wave Riders:
These are both on the exact same course, same two water fountain stops.
That is a huge difference for a slow runner, I have gathered courage and decided to wear them in the Utah Valley Marathon, then if I hate them in a marathon I will know before St. George and IMAZ 2012.