One of the challenges I faced at one point was getting the temperature of the oven to where it needed to be. While I could get to just about any temperature fairly easily, the problem I had was that the higher temperatures were a bit difficult to get to quickly. The problem was that there was a lag between applying power to the elements and getting heat from them. While the lag was fairly small at low temperature, at higher temperatures the lag could be on the order of 10-20 seconds.

My solution was pretty simple. I added a flag for certain data points in the profile that, when hit, would command the oven to look an extra step further ahead in the profile and aim to hit that temperature, while displaying the 'normal' temperature setpoint. This little bit of sleight-of-hand allows me to overcome the effect of the lag, while still presenting the intended temperature curve to the user (and indeed, achieving that curve).