I’m no pro but 2600 calories at 197 seems light if you want grow. If you’re maintaining then it may be close. With your physique I’d think you can see any weight gain from fat pretty quick. I’m 6’ 188 today and I’ve been pretty stable at 190 I can see the 2# missing and I carry a bit more fat than I want. But I also noticed when I was bulking at 3400 calories I was losing fat and my lifts were more intense. My point is this is a marathon not sprint so are some more protien/carb based snacks and see how it effects you w/o and appearance if you get too light on carbs you’ll be tired and yawning while driving like you were behind the wheel for hours… snacks are key. Keeps the metabolism up and kik other guys said helps spread the protein intake to improve its uptake.