Hey I run cross country and very narrowly missed state in my last season and would like to try and make it next season I ran an 18:16 at my district course in a pair of normal asics running shoes that weigh 13 ounces each im just curious as to how much time I would be able to cut wearing a shoe that weighs 5.6 ounces each and also if those shoes had spikes in them how much that would affect the time thanks