Breaking in new Trainers

I'm excited today as I will be shelving (for today) the 12.8oz Nike Air Max Moto 5+ and trying out the Mizuno Wave Rider 11's comming in at 11.2oz. While that might not sound like a lot think aobut 1.6oz x 2(feet)x foot strikes per mile etc it ends up being quite a bit of savings. (Probably more a psychological edge). They say that each oz of savings shaves about 1 sec per mile off one's time. I'll let you know if thats true..LOL.