Last night event, I thought I would relay the little bit of drafting information I gleamed from my use of 'Sauce' I really should get a screen capture program that does this, then I wouldn't need to fumble my thoughts out
Riding directly behind each other does increase the draft number, if you deviate from slightly to one side or the otherof the rider in front, around 30 drafting % points drop. eg I was getting around 110% perfectly aligned. around 80% just off line.
This number obviously increases the faster you're travelling which enhances the B squads by a margin compared to C squad, allowing riders behind to recovery better.
You get the same benefit behind a bunch of riders, but those leading the bunch collectively lose out draft advantage.
So without doing an dedicated experiment, ride perfectly in line where possible
But you kind of knew that anyhow