I have done it for 3 competitions. It's a great supplement for getting good glycogen supercompensation with minimal fluid retention. My last 2 competitions I was trying to 'make weight' so didn't begin my carb-up until Friday morning after the weigh in. I shovelled a lot of low GI carbs in all day Friday with around 10g of (r,s-)ALA throughout the day. I dropped carbs from late Friday night. Muscles filled really quickly, really full, and I was nice and dry by prejudging next day. I have had all my clients use it for this with equally good results. My feeling is, above it's ability to get the carbs in, is it may assist with dehydration as well???