When your on cycle you can utilize a lot more calories then what your consuming. 2300 cals is NOT even close to enough to grow. You need to be eating like your 200 pounds not 150. also, when your on cycle your body utilizes protein much better then when your natty, and you have very little use of fat (unless your struggling to get calories in). however your body can really burn through the carbs on cycle, and has the capability to store a lot more glycogen. you should be upping your carbs big time when you start bulking with AAS. I recommend using Metformin when doing this. your calories and carbs are too low to grow and put on much muscle