RPG was one that fell down the list of my favorites or that helped baseline my blood glucose levels the fastest.
Chaos & Pain Predator
Evomuse Slintensity
HPScience Glycoshield
Primeval Lags Primalog
have been the most effective by a landslide and the ones I would recommend.
I test 90-120 minutes after all my carb based meals (25-50-75-100g carbs) and utilize then on cheat meals.
Companies that are praised that I did not get much out of
Performax Slinmax
Redcon RPG
SNS Glycophase
Blackstone Glycolog
I have had some very interesting readings on certain food sources too. For example Quest bars spike my blood glucose levels very high. I even work with a type 1 diabetic who if he eats a quest bar it makes his insulin levels skyrocket. It makes me very curious if their total net carbs is truly correct on their labels.
You can see my HPS Review here with all my readings: