Managing Insulin Sensitivity While Eating in a Caloric Surplus

I am reaching a point in my bulk where I am feeling very lethargic after my high carb meals. I am interested in managing insulin sensitivity while eating in a caloric surplus here in Toronto. I have noticed that my pumps are not as good as they were at the start of the growth phase and I am starting to look a bit soft.

I have started adding apple cider vinegar to my larger meals and I am doing ten minute walks after eating to help with glucose disposal. I have also heard that supplements like Berberine or Alpha Lipoic Acid can be very helpful when you are pushing the food high. I want to make sure the nutrients are going to the muscle and not just being stored as fat.

Do you use any specific glucose disposal agents or GDA products? I am curious if you notice a difference in your body composition when you stay on top of your insulin health. I really do not want to end up insulin resistant before I reach my goal weight.