I'm a total newbie to smoking. I just bought a Vision Komodo S series. For my first smoke I tried chicken breasts. I put 5 Breasts on, 4 wrapped and 1 not. I added about 5 or 6 chunks of hickory like the guys with this grill on YouTube did. Got good smoke for the first hour and a half to two hours. Then the wood chunks must've burned up. I took the breasts off after 4 hours even though I only had smoke for half the cook. The unwrapped breast had a perfect level of smoke flavor but the foil wrapped breasts had zero smoke flavor... I used dry chunks like the videos but their smoke seems to last the entire cook. You can't really add wood using this smoker so I need to know where I screwed up. I'm also assuming that the smoke should last the entire cook like in the videos I watched, is that true? Any advice will be much appreciated!