Hi Derek, good start on the training program.
I'm also doing a 10miler next week

I've been doing regular training like you but a little different.
This is what I've been told to do.....keep up the weekly training etc, include some interval/speed training mid week (up to you length of distance etc) but must be faster than normal pace with rest intervals in between each sprints etc.
Add some hill training to mix it up a bit, to train the legs etc.
keep a nice long run for the weekend at a slower pace (preferably longer than 10miles)
Keep up to date with what the body's saying to you ie the breathing, muscle twitches etc. don't want any injuries to hinder your efforts.
It's up to you how you go about it but for improvements, in my opinion you need to mix it up instead of the same 6milers etc this will make you improve faster and make you feel good at how you've improved
Hope this helps