I love Gpush---i dont think it tastes wonderful, but for races thats usually what i use. I say races, cause for me, its too expensive as a daily drink for rides etc. Gpush is to fluid replacement what Cervelo is to bike technology. They've raised the bar in my opinion, the concept that changing the caloric level, carb % based on differing lengths is nothing new, but to my knowledge their the only company that offers such a product. For one of my 1/2 IM's last yr, I had 3 different bottles of Gpush on the ride, the 2 for the first bottle, a combo of 2+3 for the second bottle and the 3 for the last one. It worked really well for me, i didnt bonk, and i didnt need to chug down my gels cause i was getting the calories i needed from the gpush. As you mentioned, i love the high sodium content.
Want: 58cm Cervelo Soloist. PM me if you have one to sell
Vintage Cervelo: A Resource