So over the weekend, I done goofed with my first trials with the Dr Alex mix.

My 20km long run was about 140g of mix in a 620mL bottle (about a 22% mix) being carried by my Mum who was riding along beside me. Felt a bit uncomfortable at about the 8km mark, made the safety stop at about 10km where I had a bit of GI upset, felt a bit woozy sitting there and then was able to continue the run without too many other issues. Felt a bit crap when I got home, but had another bottle of water and came good reasonably quickly after that. I understand that it was just a bit too concentrated, but was a victim of circumstance.

My 100km TT ride was 180g of mix spread across 2 500mL Elite bottles with a 750mL bottle and another 600mL bottle of water for chasing. The nutrition went in much better and I was able to consume all of the fluids and calories evenly across the ride (2:45 duration). I did notice that I started to feel a bit foggy at around the 80km mark, and was starting to lose focus and feel a bit out-of-body, to the point where I contemplated stopping, but it passed and I was able to get it done. A quick transition and a solid pee and I was able to complete a 10km ROTB as well (although this was done without nutrition). I had no issues on the run at all with anything GI. I know that the bike CHO/hour ratio was lower than it should have been, and lower than I'm used to with my other product, but I've never experienced the fogginess before.

Has anyone else experienced this or have any advice to circumvent that? I'm keen to persist with this mix and just want to get it right.