I've been wearing Brooks Adrenalines almost since I started running. I started in 6's and now I think they are up to 9's. So LOTS of Adrenalines!!!
I had a bit of trouble towards the end of marathon training when I switched from 6's to 7's. Then again going from 8's to 9's. I end up with super tight calves. Also, I noticed last week on my long run that my stride just didnt' seem as smooth, that I was landing really hard.
Currently I have two pairs of 9's. I don't track miles anymore, but after so many pairs of shoes, I know what wear pattern to look for. I know wear pattern is not a good judge, but after so many pairs of shoes, I know that I wear through a certain part of the tread around m250. Both pairs have at least 200miles left.
My marathon is in 2 weeks. I have a calf injury. Even switching back to an older pair of 8's didn't help. Should I think about switching shoes? Maybe there is something "wrong" with the upgrades? Or am I just 2 weeks out from my marathon and starting to taper, therefore any little ache/pain is going to make me think I'm going to be a DNS?