I like Carbion.
I'm a little different though as my carb of choice is TN Karboload.
Honestly, i feel like im the only guy who just feels not goood at all with traditional HBCD. I am constantly burping and get immediate heartburn. But soon as I go back to Karboload (Carbion worked well too, havent used Karbolyn in years but liked that way back when) i'm great.
I also have a tendency to go hypo on HBCD, not sure why. I take the same amounts of insulin pre, take enough carbs to cover them, but still feel sweaty and clammy and have to pounnnd the HBCD to feel normal.
Not sure of the science at all, but Im thinking that the Karboload and others deliver a quicker spike while HCBD is a more of a slow sustained release. Not sure.