Here's a link to a page about Pulse and Gliding.
Driving technique: exploring 'Pulse and Glide' - MetroMPG.com
I believe I was becoming confused earlier when speaking of P&Ging on page 1. I've done it but to a lesser extent, And to some decent effect; On highways, I accelerated to 65 on down slopes and slowly went down to 55 on up slopes and then held 55ish.
Also, I must again mention proper tire pressure; If you exceed the most fuel-efficient pressure (Which may be lower than you think,) Your FE is going to go down a lot more than you may think.