Dropping mileage before competition season?

Perfectly fine to drop mileage to some extent. JK always said that the best approach for long term development of high schoolers is to have periods of higher mileage rather than sustained higher mileage. Lydiard had his guys dropping their mileage WAY down during the competitive phase. You'll get a lot faster when you substitute quality for quantity. The trick is figuring out how long you can do it. Eventually you have to go back and rebuild. Depending on when your final meets are, you're only looking at another 6-7 weeks of the season, in which case you're fine. If you expect to have a longer post-season, then I would try to keep mileage a bit higher at least until October.

Some of this is just figuring out how your body responds, though. It's a bit harder to get peaking just right if you're a fast twitch runner (but, oh, when you do, it's amazing the kinds of times you'll blast), whereas slow twitch runners are typically able to keep their mileage higher, and they also don't really peak as sharply.

Naw. If you did that now you would run well for a while and then stagnate in October.

You would be better off maintaining what you’re currently doing then cutting back mid-late October so your best racing will be in at your championship meets in November.

Also, I think I should say that my season will be done by the end of October, and I’ve been building mileage since the end of May.