Ok so im a serious runner in high school and im a female. Its time for me to buy some new shoes. I like to have a pair of heavy shoes (for easy runs) and a pair of light shoes (for workouts). I dont want the light shoes to be so light that they dont support me at all, and get me injured, but I want it to be noticably lighter than my "heavy pair", like i feel lighter on my feet going from the heavy shoes to the light shoes. anyways... im pretty injury prone. lately, its been my achilles/ calves. but I was wondering if anybody knew a good stability shoe that I can buy to do my easy runs in that you have had success with an that minimize injury risk, and if you had any suggestions for the lighter shoe i mentioned previously, that has a good amount of support so I wont get injured but is still lighter than usual. I dont want any weird crazy abnormal shoe because im worried about taking a huge risk, but if you guys had any ideas, could you please help me out? thanks.