I believe the research shows maltodextrin to be just as fast absorbing as dextrose. I use it mainly for it's lower sweetness compared to other CHO sources. Straight up fructose is so darned sweet for me don't use it over 20% along with 80% maltodextrin.

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Genetics load the gun, lifestyle pulls the trigger.

I'm not yet sold on ~100g/h being the upper limit. The study in familiar with showed that over 3h endogenous carb burn was no higher at 120g/h than at 90g/h. The questions that remain are:

Does this hold true for a 8h IM?
Is there a relationship between output and intake? A 6.5 ft triathlete surely can handle/needs more than a 5ft. Ditto for power output and fat/carb burn rates.
Can this be trained? Not just the gut, but the rapid use of endogenous carbs in the muscles
Is fructose/glucose actually the perfect combination? Surely there's something to add or another substance that hasn't been tried yet that can boost the absorbtion/usage.

Less than 10 years ago we all knew that 50g/h was the target and going above that was unnecessary.

You can add Geluminati to that 1:.08 list ;)

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IG - @ryanppax
http://www.geluminati.com
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What research shows there’s no advantage to over 100 g?

man, i would have to look it up...it has been stated in a podcast..i will have to check..
but they is a study started which focuses on muscle glycogen and its use, with muscle biopsies? sorry for my english..it is not germany based as this is hard to get approved..they try to look how much of the sugars taken end up in muscle tissue..

Isn't Honey 1:0.8? Whats wrong with just throwing a bunch of honey into a bottle adding water and throwing some salt in there and chugging that during a ride?

Back to the carb load ideas, except now we do it during the race.