140g carbs per hour

[Dr_Alex_Harrison]

Both. Mostly the first.

And ease of swallowing/breathing afterwards.

[Dr_Alex_Harrison]

@Cavasta

@Tim_87

Also from a taste point of view: I am not sure, but I think sucrose is tasting sweeter than a mix of glucose & fructose, right?

Not according to Alex:

@Dr_Alex_Harrison

Sucrose works as well as malto + fructose and is slightly lower osmolarity and slightly less sweet than a 50:50 malto:fruc mix.

I stand corrected. My osmolarity math was correct, but my sweetness math was wrong. Sucrose is very slightly more sweet than malto:fruc. Probably not enough to matter.