I agree with Goog... once you get you insulin under control for a while you can start by using more low GI carbs on heavy training days. Ben Greenfield a world renown extreme endurance athlete and coach talks about this on his site. http://www.bengreenfieldfitness.com/ He is training for the iron man triathlon in Canada in Aug and remaining keto adapt the entire time and using up to 200 grams of carbs on heavy training days.