Not all sport types require 1 minute between heats, and many require heat blocks that are shorter than the 2 minutes (1 minute minimum heat time, and 1 minute buffer). These make the schedule largely unusable. For example, we may have 8 to 10 divisions with 1 athlete in them, each of which might take 30 seconds max. If we have 10 of those, with two runs, Liveheats forces us to take 20 mins of time for something which may only really need 5 mins or less.