Bodybuilding & Tracking Macros with MFP

Bodybuilding with MFP

Hi, I have been using MFP for around six weeks now and think its great.
I have been a religious member of the gym for 18 months now and recently started to track my Calories and Macros to take my progress hopefully to the next stage.
I find that sometimes I reach the end of my day and my Macros are on point but my calories may show +150/200.
I am currently follow a calorie deficit ( approx -250 per day, going off the MFP calculated Maintenance)and Macro Ratio of 40/40/20, (losing 3-4 lbs per month)

Im happy with my cutting progress, and understand the `if its not broke, dont fix it` statement,
Just wondered if all you MFP gym rats follow the Daily Calorie Intake Number or the 3 Macro Intake Numbers as sometimes I find they marry together ****-on and sometimes the Calories over run the Macros by upto +200 cals

Any feedback is welcome,