Cheers for correcting my error.
Yeah, sucrose gets broken down into 50g of each. So 100g of sucrose would leave you 10g short of the 60g glucose limit but over the ~30g fructose limit.
For those really looking for marginal gains, I think maltodextrin is supposed to be the most efficient way to consume most of your glucose because it maximises the amount of glucose you can take in while minimising the gastrointestinal issues.