I agree! I can duplicate product and process, but get different results if I don't take the weather into account. Humidity, rain, wind, temperature all matter (to me). I'd be lying if I said I had it all figured out:-), but I do have some techniques that seem to be working. For example, when it's dry and cold I leave a bit more conditioner in; when it's humid, I use a couple of drops of oil to smooth my canopy; when it's windy, a *lot* more gel.
Right now I'm experimenting with baby shampoo and leaving in more conditioner. I hate to say it, but it's working better than HCC, which seemed to be weighing my hair down too much. We'll see if it keeps up!