First of all, somatypes like 'endo' are bullshit. These are descriptions of the present, only. Will you be an endomorph when you diet down to 8-pack lean?
As to your question, I have do use high/ medium/ low. You have to stay honest. You must suffer somewhar to get lean, especially if you start out chubby, as I did. Hunger is fat, leaving the body. I follow Justin Harris' logic. He advised to keep the low days LOW and the high days HIGH.
Maintain a calorie deficit over a weekly timescale. I usually go LLLMLLH with the high day not being a whole day (can easily lead to indiscipline) but rather a finite timeframe on Friday evening, say 3-4 hrs, during which I'll.shove high carb, low fat treats like rice cakes, cereal bars, sherbet, RK squares, waffles and maple syrup etc. Sources to investigate: Jamie Lewis' predator diet, Kiefer's Carb Nite, Shelby's carb cycling for mma (you can get this as a free pdf), Lyle McDonald's UD2.0, DiPasquale's Metabolic Diet, and of course Skiploading.
Consider also your training: many have found that HIIT/ sprints/ multiple weight sessions and very very low carbs do not mix.