How narrow do you need to go? A bottle is barely 3.5 inches wide. I mean, most of us are crappy age groupers finshing 1-8 hrs behind Sam Laidlaw. Does it matter that much? Slightly wider may be a bit safer during training in cross winds and traffic.

Old setup has HED Lollipop putting bottle 'above' pads. New setup has a bottle barely fitting between the pads (they are already wider than old setup - crosswind haven't been issue on either). Wouldn't mind going narrower. Really curious for 'those in the know' that may have experimented with both in the tunnel...

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Running is the best source of fiber that I know of...

If you're making decisions about these things in the name of speed, without testing you're just guessing.

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Brian Stover USAT LII
Accelerate3 Coaching
Insta

hey that's my line!!!

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Technique will always last longer then energy production. Improve biomechanics, improve performance.
http://Www.anthonytoth.ca, triathletetoth@twitter

I know.... BUT, I'd like to take an 'educationed guess' as meandering over to a windtunnel just isn't happening any time soon for me...

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Running is the best source of fiber that I know of...

honestly just flip a coin. too many factors in play for anyone to say with any certainty

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Brian Stover USAT LII
Accelerate3 Coaching
Insta

Stretching the question a bit, but I think there is a correct answer in cases like this. If it's truly just a coin flip, choose the most comfortable one that allows you to:

-output more power
-stay in the position longer

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Too old to go pro but doing it anyway
http://instagram.com/tgarvey4

It is a guessing game but there are some general rules that apply to this case.

-without any bottle the narrow elbows will usually be faster. Especially if you can get your shoulders shrugged and forward, which the narrow elbows often helps.

-adding a bottle between wide elbows will generally make the wide elbow position faster so long as the bottle is in the draft of the arms, but there's a huge variance here

-it's difficult to go from wide to narrow. It's easy to go from narrow to wide.

My rec would be to get your forarms touching and start testing from there. Find the position first and then learn to deal with it for the duration you need. Test again if you make any changes.