Aero Bar pad adjustment?

Thanks,  thats the kind of answer I was looking for.  Real world results.

I have my pads positioned so that my elbows are directly supported - I find it a more relaxed position as it's supporting more load than just having the pads under my forearms. I think it's entirely a personal preference, but I definitely feel like I have better steering control and leverage by having the pads further back.  

It's true that keeping your arms & elbows tucked in close together is more aero, and as long as you are comfortable enough and it doesn't affect your performance/breathing by limiting your chest expansion then you're okay. I was comfortable enough with a previous setup, but when I changed aerobars 1/2 way into last season, I moved my elbows and forearms apart a bit more and I had much less strain, more comfort and no change in my TT times.

Thanks for the reply, good information for sure.  

I'll second what sty said above.  I've been playing around with pad width a lot, and it seems that it is basically a matter of finding the right compromise between a narrow face presented to the relentlessly oncoming wind and having 'room' enough to breath without too much constriction.  As for front-to-back adjustment, I haven't noticed any real difference in overall speed associated with this, only comfort, so I put them where it is most comfortable (for me, close to but slightly in front of my elbows).