very bad idea imo. Your are already vlc so you are getting very little of the nutrients that come with primal carbs(pot, mag, some vits etc.) so by eating pure glucose over tubers you are doing yourself a huge disservice.
Pure glucose is for elite athletes already eating 600+g carbs or for multiple training sessions in a day.
TLDR- stick to potatoes, yams, sweet potatoes, fruit and squash.