Like I said when your trying to break 18:00 for the first time and you are 30, you probably don't need to worry about strides.
With the little time you have to train, you are better off running the extra 10 minutes.
I have been very lucky that the people I coach are on the track every year or trying to be in championship races on the road.
A lot of my advice will not be good for someone who only has an hour a day to run. I have never coached anyone with a wife and kids or a full-time job. When I talk about doing injury prevention, strides, sprints, weights, you have to have time to do them.
PS Strides and sprints are to improve your overall speed, this is so that you can build on that speed and run faster in the 400,800,1500,5000,10000, etc... You think they are for an all out kick, its so you can take that speed you have improved with the endurance that you are also improving, to become an overall a faster runner.