That should work much like using the instant cookies at the store. From a lot of experience with medibles in a short period of time (just 3 years) I have found that you will feel the actual effects of a medible in 53 to 70 minutes. After 70 minutes there should be no doubt.

There aren't many variables to how long it takes medibles to get you high that are affected by what you eat, drink or smoke while waiting to feel the effect. It always seems to hit in the same approximate time. I do a regular wake and bake and continue through the day so I am always stoned when I take a medible. However I have done it so often that it is easy for me to notice when the different feeling kicks in.